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Finding the Fourth Proportional to 522,072.60, 729,327 and 522,072.60

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Solution

The fourth proportional to 522,072.60, 729,327 and 522,072.60 is: 729,327

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,072.60 : 729,327 = 522,072.60 : x
  2. Step 2: Convert to fraction form
    522,072.60/729,327 = 522,072.60/x
  3. Step 3: Cross multiply
    522,072.60x = 729,327 × 522,072.60
  4. Step 4: Simplify right side
    522,072.60x = 380,761,643,140.20
  5. Step 5: Solve for x
    x = 380,761,643,140.20/522,072.60
  6. Step 6: Final answer
    x = 729,327

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.