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Finding the Fourth Proportional to 617,373.76, 925,429.14 and 417,715.24

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Solution

The fourth proportional to 617,373.76, 925,429.14 and 417,715.24 is: 626,145.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,373.76 : 925,429.14 = 417,715.24 : x
  2. Step 2: Convert to fraction form
    617,373.76/925,429.14 = 417,715.24/x
  3. Step 3: Cross multiply
    617,373.76x = 925,429.14 × 417,715.24
  4. Step 4: Simplify right side
    617,373.76x = 386,565,855,318.09
  5. Step 5: Solve for x
    x = 386,565,855,318.09/617,373.76
  6. Step 6: Final answer
    x = 626,145.59

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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.