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Finding the Fourth Proportional to 475,974.20, 715,127.70 and 357,876.20

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Solution

The fourth proportional to 475,974.20, 715,127.70 and 357,876.20 is: 537,691.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,974.20 : 715,127.70 = 357,876.20 : x
  2. Step 2: Convert to fraction form
    475,974.20/715,127.70 = 357,876.20/x
  3. Step 3: Cross multiply
    475,974.20x = 715,127.70 × 357,876.20
  4. Step 4: Simplify right side
    475,974.20x = 255,927,183,790.74
  5. Step 5: Solve for x
    x = 255,927,183,790.74/475,974.20
  6. Step 6: Final answer
    x = 537,691.29

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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.