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Finding the Fourth Proportional to 708,360.38, 977,508.81 and 386,063.54

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Solution

The fourth proportional to 708,360.38, 977,508.81 and 386,063.54 is: 532,752.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,360.38 : 977,508.81 = 386,063.54 : x
  2. Step 2: Convert to fraction form
    708,360.38/977,508.81 = 386,063.54/x
  3. Step 3: Cross multiply
    708,360.38x = 977,508.81 × 386,063.54
  4. Step 4: Simplify right side
    708,360.38x = 377,380,511,569.79
  5. Step 5: Solve for x
    x = 377,380,511,569.79/708,360.38
  6. Step 6: Final answer
    x = 532,752.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.