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Finding the Fourth Proportional to 625,156.98, 938,879.46 and 572,455.68

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Solution

The fourth proportional to 625,156.98, 938,879.46 and 572,455.68 is: 859,731.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,156.98 : 938,879.46 = 572,455.68 : x
  2. Step 2: Convert to fraction form
    625,156.98/938,879.46 = 572,455.68/x
  3. Step 3: Cross multiply
    625,156.98x = 938,879.46 × 572,455.68
  4. Step 4: Simplify right side
    625,156.98x = 537,466,879,712.33
  5. Step 5: Solve for x
    x = 537,466,879,712.33/625,156.98
  6. Step 6: Final answer
    x = 859,731.07

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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.