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Finding the Fourth Proportional to 713,863.30, 1,068,691.10 and 625,289.80

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Solution

The fourth proportional to 713,863.30, 1,068,691.10 and 625,289.80 is: 936,091.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,863.30 : 1,068,691.10 = 625,289.80 : x
  2. Step 2: Convert to fraction form
    713,863.30/1,068,691.10 = 625,289.80/x
  3. Step 3: Cross multiply
    713,863.30x = 1,068,691.10 × 625,289.80
  4. Step 4: Simplify right side
    713,863.30x = 668,241,644,180.78
  5. Step 5: Solve for x
    x = 668,241,644,180.78/713,863.30
  6. Step 6: Final answer
    x = 936,091.89

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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.