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Finding the Fourth Proportional to 573,132.35, 790,929.81 and 315,037.48

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Solution

The fourth proportional to 573,132.35, 790,929.81 and 315,037.48 is: 434,755.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,132.35 : 790,929.81 = 315,037.48 : x
  2. Step 2: Convert to fraction form
    573,132.35/790,929.81 = 315,037.48/x
  3. Step 3: Cross multiply
    573,132.35x = 790,929.81 × 315,037.48
  4. Step 4: Simplify right side
    573,132.35x = 249,172,534,199.28
  5. Step 5: Solve for x
    x = 249,172,534,199.28/573,132.35
  6. Step 6: Final answer
    x = 434,755.66

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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.