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Finding the Fourth Proportional to 625,631.80, 938,447.70 and 598,329.40

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Solution

The fourth proportional to 625,631.80, 938,447.70 and 598,329.40 is: 897,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,631.80 : 938,447.70 = 598,329.40 : x
  2. Step 2: Convert to fraction form
    625,631.80/938,447.70 = 598,329.40/x
  3. Step 3: Cross multiply
    625,631.80x = 938,447.70 × 598,329.40
  4. Step 4: Simplify right side
    625,631.80x = 561,500,849,272.38
  5. Step 5: Solve for x
    x = 561,500,849,272.38/625,631.80
  6. Step 6: Final answer
    x = 897,494.10

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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.