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Finding the Fourth Proportional to 630,020.10, 862,472.00 and 625,517.58

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Solution

The fourth proportional to 630,020.10, 862,472.00 and 625,517.58 is: 856,308.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,020.10 : 862,472.00 = 625,517.58 : x
  2. Step 2: Convert to fraction form
    630,020.10/862,472.00 = 625,517.58/x
  3. Step 3: Cross multiply
    630,020.10x = 862,472.00 × 625,517.58
  4. Step 4: Simplify right side
    630,020.10x = 539,491,395,130.17
  5. Step 5: Solve for x
    x = 539,491,395,130.17/630,020.10
  6. Step 6: Final answer
    x = 856,308.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.