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Finding the Fourth Proportional to 529,353.40, 792,717.90 and 424,377.40

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Solution

The fourth proportional to 529,353.40, 792,717.90 and 424,377.40 is: 635,514.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,353.40 : 792,717.90 = 424,377.40 : x
  2. Step 2: Convert to fraction form
    529,353.40/792,717.90 = 424,377.40/x
  3. Step 3: Cross multiply
    529,353.40x = 792,717.90 × 424,377.40
  4. Step 4: Simplify right side
    529,353.40x = 336,411,561,335.46
  5. Step 5: Solve for x
    x = 336,411,561,335.46/529,353.40
  6. Step 6: Final answer
    x = 635,514.12

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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.