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Finding the Fourth Proportional to 586,407.38, 809,236.71 and 331,758.56

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Solution

The fourth proportional to 586,407.38, 809,236.71 and 331,758.56 is: 457,823.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,407.38 : 809,236.71 = 331,758.56 : x
  2. Step 2: Convert to fraction form
    586,407.38/809,236.71 = 331,758.56/x
  3. Step 3: Cross multiply
    586,407.38x = 809,236.71 × 331,758.56
  4. Step 4: Simplify right side
    586,407.38x = 268,471,207,631.83
  5. Step 5: Solve for x
    x = 268,471,207,631.83/586,407.38
  6. Step 6: Final answer
    x = 457,823.72

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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.