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Finding the Fourth Proportional to 529,353.90, 792,718.65 and 424,377.90

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Solution

The fourth proportional to 529,353.90, 792,718.65 and 424,377.90 is: 635,514.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,353.90 : 792,718.65 = 424,377.90 : x
  2. Step 2: Convert to fraction form
    529,353.90/792,718.65 = 424,377.90/x
  3. Step 3: Cross multiply
    529,353.90x = 792,718.65 × 424,377.90
  4. Step 4: Simplify right side
    529,353.90x = 336,412,275,977.84
  5. Step 5: Solve for x
    x = 336,412,275,977.84/529,353.90
  6. Step 6: Final answer
    x = 635,514.87

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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.