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Finding the Fourth Proportional to 718,627.32, 991,523.16 and 527,308.56

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Solution

The fourth proportional to 718,627.32, 991,523.16 and 527,308.56 is: 727,551.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,627.32 : 991,523.16 = 527,308.56 : x
  2. Step 2: Convert to fraction form
    718,627.32/991,523.16 = 527,308.56/x
  3. Step 3: Cross multiply
    718,627.32x = 991,523.16 × 527,308.56
  4. Step 4: Simplify right side
    718,627.32x = 522,838,649,706.25
  5. Step 5: Solve for x
    x = 522,838,649,706.25/718,627.32
  6. Step 6: Final answer
    x = 727,551.87

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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.