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Finding the Fourth Proportional to 573,712.32, 791,698.57 and 315,572.88

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Solution

The fourth proportional to 573,712.32, 791,698.57 and 315,572.88 is: 435,477.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,712.32 : 791,698.57 = 315,572.88 : x
  2. Step 2: Convert to fraction form
    573,712.32/791,698.57 = 315,572.88/x
  3. Step 3: Cross multiply
    573,712.32x = 791,698.57 × 315,572.88
  4. Step 4: Simplify right side
    573,712.32x = 249,838,601,190.12
  5. Step 5: Solve for x
    x = 249,838,601,190.12/573,712.32
  6. Step 6: Final answer
    x = 435,477.14

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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.