Home / 772,106.20-1,157,619.30-456,400.60

Finding the Fourth Proportional to 772,106.20, 1,157,619.30 and 456,400.60

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Solution

The fourth proportional to 772,106.20, 1,157,619.30 and 456,400.60 is: 684,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,106.20 : 1,157,619.30 = 456,400.60 : x
  2. Step 2: Convert to fraction form
    772,106.20/1,157,619.30 = 456,400.60/x
  3. Step 3: Cross multiply
    772,106.20x = 1,157,619.30 × 456,400.60
  4. Step 4: Simplify right side
    772,106.20x = 528,338,143,091.58
  5. Step 5: Solve for x
    x = 528,338,143,091.58/772,106.20
  6. Step 6: Final answer
    x = 684,281.70

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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.