Home / 780,350.74-1,076,880.88-436,186.30

Finding the Fourth Proportional to 780,350.74, 1,076,880.88 and 436,186.30

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Solution

The fourth proportional to 780,350.74, 1,076,880.88 and 436,186.30 is: 601,935.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,350.74 : 1,076,880.88 = 436,186.30 : x
  2. Step 2: Convert to fraction form
    780,350.74/1,076,880.88 = 436,186.30/x
  3. Step 3: Cross multiply
    780,350.74x = 1,076,880.88 × 436,186.30
  4. Step 4: Simplify right side
    780,350.74x = 469,720,686,587.94
  5. Step 5: Solve for x
    x = 469,720,686,587.94/780,350.74
  6. Step 6: Final answer
    x = 601,935.34

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.