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Finding the Fourth Proportional to 573,528.74, 791,451.54 and 315,404.89

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Solution

The fourth proportional to 573,528.74, 791,451.54 and 315,404.89 is: 435,248.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,528.74 : 791,451.54 = 315,404.89 : x
  2. Step 2: Convert to fraction form
    573,528.74/791,451.54 = 315,404.89/x
  3. Step 3: Cross multiply
    573,528.74x = 791,451.54 × 315,404.89
  4. Step 4: Simplify right side
    573,528.74x = 249,627,683,935.40
  5. Step 5: Solve for x
    x = 249,627,683,935.40/573,528.74
  6. Step 6: Final answer
    x = 435,248.78

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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.