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Finding the Fourth Proportional to 423,702.92, 584,567.72 and 239,916.46

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Solution

The fourth proportional to 423,702.92, 584,567.72 and 239,916.46 is: 331,004.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,702.92 : 584,567.72 = 239,916.46 : x
  2. Step 2: Convert to fraction form
    423,702.92/584,567.72 = 239,916.46/x
  3. Step 3: Cross multiply
    423,702.92x = 584,567.72 × 239,916.46
  4. Step 4: Simplify right side
    423,702.92x = 140,247,418,012.67
  5. Step 5: Solve for x
    x = 140,247,418,012.67/423,702.92
  6. Step 6: Final answer
    x = 331,004.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.