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Finding the Fourth Proportional to 625,830.48, 938,747.16 and 439,673.04

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Solution

The fourth proportional to 625,830.48, 938,747.16 and 439,673.04 is: 659,510.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,830.48 : 938,747.16 = 439,673.04 : x
  2. Step 2: Convert to fraction form
    625,830.48/938,747.16 = 439,673.04/x
  3. Step 3: Cross multiply
    625,830.48x = 938,747.16 × 439,673.04
  4. Step 4: Simplify right side
    625,830.48x = 412,741,817,628.57
  5. Step 5: Solve for x
    x = 412,741,817,628.57/625,830.48
  6. Step 6: Final answer
    x = 659,510.57

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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.