Home / 726,492,037.20-1,089,738,055.80-508,388,650.80

Finding the Fourth Proportional to 726,492,037.20, 1,089,738,055.80 and 508,388,650.80

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Solution

The fourth proportional to 726,492,037.20, 1,089,738,055.80 and 508,388,650.80 is: 762,582,976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,492,037.20 : 1,089,738,055.80 = 508,388,650.80 : x
  2. Step 2: Convert to fraction form
    726,492,037.20/1,089,738,055.80 = 508,388,650.80/x
  3. Step 3: Cross multiply
    726,492,037.20x = 1,089,738,055.80 × 508,388,650.80
  4. Step 4: Simplify right side
    726,492,037.20x = 554,010,459,913,577,088
  5. Step 5: Solve for x
    x = 554,010,459,913,577,088/726,492,037.20
  6. Step 6: Final answer
    x = 762,582,976.20

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Double scale
Find fourth proportional to 726,492,038.20, 1,089,738,057.30 and 508,388,651.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.