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Finding the Fourth Proportional to 625,702.83, 938,833.35 and 288,562.51

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Solution

The fourth proportional to 625,702.83, 938,833.35 and 288,562.51 is: 432,972.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,702.83 : 938,833.35 = 288,562.51 : x
  2. Step 2: Convert to fraction form
    625,702.83/938,833.35 = 288,562.51/x
  3. Step 3: Cross multiply
    625,702.83x = 938,833.35 × 288,562.51
  4. Step 4: Simplify right side
    625,702.83x = 270,912,107,947.71
  5. Step 5: Solve for x
    x = 270,912,107,947.71/625,702.83
  6. Step 6: Final answer
    x = 432,972.48

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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.