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Finding the Fourth Proportional to 573,126.59, 790,921.87 and 315,031.73

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Solution

The fourth proportional to 573,126.59, 790,921.87 and 315,031.73 is: 434,747.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,126.59 : 790,921.87 = 315,031.73 : x
  2. Step 2: Convert to fraction form
    573,126.59/790,921.87 = 315,031.73/x
  3. Step 3: Cross multiply
    573,126.59x = 790,921.87 × 315,031.73
  4. Step 4: Simplify right side
    573,126.59x = 249,165,484,707.68
  5. Step 5: Solve for x
    x = 249,165,484,707.68/573,126.59
  6. Step 6: Final answer
    x = 434,747.73

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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.