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Finding the Fourth Proportional to 621,700.80, 932,551.20 and 607,876.80

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Solution

The fourth proportional to 621,700.80, 932,551.20 and 607,876.80 is: 911,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,700.80 : 932,551.20 = 607,876.80 : x
  2. Step 2: Convert to fraction form
    621,700.80/932,551.20 = 607,876.80/x
  3. Step 3: Cross multiply
    621,700.80x = 932,551.20 × 607,876.80
  4. Step 4: Simplify right side
    621,700.80x = 566,876,239,292.16
  5. Step 5: Solve for x
    x = 566,876,239,292.16/621,700.80
  6. Step 6: Final answer
    x = 911,815.20

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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.