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Finding the Fourth Proportional to 521,626.40, 731,851.60 and 521,626.40

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Solution

The fourth proportional to 521,626.40, 731,851.60 and 521,626.40 is: 731,851.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,626.40 : 731,851.60 = 521,626.40 : x
  2. Step 2: Convert to fraction form
    521,626.40/731,851.60 = 521,626.40/x
  3. Step 3: Cross multiply
    521,626.40x = 731,851.60 × 521,626.40
  4. Step 4: Simplify right side
    521,626.40x = 381,753,115,442.24
  5. Step 5: Solve for x
    x = 381,753,115,442.24/521,626.40
  6. Step 6: Final answer
    x = 731,851.60

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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.