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Finding the Fourth Proportional to 625,212, 935,683.92 and 397,392.12

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Solution

The fourth proportional to 625,212, 935,683.92 and 397,392.12 is: 594,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,212 : 935,683.92 = 397,392.12 : x
  2. Step 2: Convert to fraction form
    625,212/935,683.92 = 397,392.12/x
  3. Step 3: Cross multiply
    625,212x = 935,683.92 × 397,392.12
  4. Step 4: Simplify right side
    625,212x = 371,833,416,618.71
  5. Step 5: Solve for x
    x = 371,833,416,618.71/625,212
  6. Step 6: Final answer
    x = 594,731.73

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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.