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Finding the Fourth Proportional to 625,764.60, 938,646.90 and 625,764.60

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Solution

The fourth proportional to 625,764.60, 938,646.90 and 625,764.60 is: 938,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,764.60 : 938,646.90 = 625,764.60 : x
  2. Step 2: Convert to fraction form
    625,764.60/938,646.90 = 625,764.60/x
  3. Step 3: Cross multiply
    625,764.60x = 938,646.90 × 625,764.60
  4. Step 4: Simplify right side
    625,764.60x = 587,372,001,919.74
  5. Step 5: Solve for x
    x = 587,372,001,919.74/625,764.60
  6. Step 6: Final answer
    x = 938,646.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.