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Finding the Fourth Proportional to 649,207.81, 895,953.15 and 358,813.14

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Solution

The fourth proportional to 649,207.81, 895,953.15 and 358,813.14 is: 495,187.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,207.81 : 895,953.15 = 358,813.14 : x
  2. Step 2: Convert to fraction form
    649,207.81/895,953.15 = 358,813.14/x
  3. Step 3: Cross multiply
    649,207.81x = 895,953.15 × 358,813.14
  4. Step 4: Simplify right side
    649,207.81x = 321,479,764,724.30
  5. Step 5: Solve for x
    x = 321,479,764,724.30/649,207.81
  6. Step 6: Final answer
    x = 495,187.76

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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.