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Finding the Fourth Proportional to 573,351.85, 791,156.82 and 315,186.22

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Solution

The fourth proportional to 573,351.85, 791,156.82 and 315,186.22 is: 434,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,351.85 : 791,156.82 = 315,186.22 : x
  2. Step 2: Convert to fraction form
    573,351.85/791,156.82 = 315,186.22/x
  3. Step 3: Cross multiply
    573,351.85x = 791,156.82 × 315,186.22
  4. Step 4: Simplify right side
    573,351.85x = 249,361,727,523.02
  5. Step 5: Solve for x
    x = 249,361,727,523.02/573,351.85
  6. Step 6: Final answer
    x = 434,919.20

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Double scale
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1.5x scale

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.