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Finding the Fourth Proportional to 573,498.64, 791,440.96 and 315,359.22

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Solution

The fourth proportional to 573,498.64, 791,440.96 and 315,359.22 is: 435,202.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,498.64 : 791,440.96 = 315,359.22 : x
  2. Step 2: Convert to fraction form
    573,498.64/791,440.96 = 315,359.22/x
  3. Step 3: Cross multiply
    573,498.64x = 791,440.96 × 315,359.22
  4. Step 4: Simplify right side
    573,498.64x = 249,588,203,821.65
  5. Step 5: Solve for x
    x = 249,588,203,821.65/573,498.64
  6. Step 6: Final answer
    x = 435,202.79

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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.