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Finding the Fourth Proportional to 573,402.32, 791,315.51 and 315,298.92

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Solution

The fourth proportional to 573,402.32, 791,315.51 and 315,298.92 is: 435,123.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,402.32 : 791,315.51 = 315,298.92 : x
  2. Step 2: Convert to fraction form
    573,402.32/791,315.51 = 315,298.92/x
  3. Step 3: Cross multiply
    573,402.32x = 791,315.51 × 315,298.92
  4. Step 4: Simplify right side
    573,402.32x = 249,500,924,105.76
  5. Step 5: Solve for x
    x = 249,500,924,105.76/573,402.32
  6. Step 6: Final answer
    x = 435,123.68

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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.