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Finding the Fourth Proportional to 617,834.74, 926,887.95 and 351,719.86

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Solution

The fourth proportional to 617,834.74, 926,887.95 and 351,719.86 is: 527,657.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,834.74 : 926,887.95 = 351,719.86 : x
  2. Step 2: Convert to fraction form
    617,834.74/926,887.95 = 351,719.86/x
  3. Step 3: Cross multiply
    617,834.74x = 926,887.95 × 351,719.86
  4. Step 4: Simplify right side
    617,834.74x = 326,004,900,009.69
  5. Step 5: Solve for x
    x = 326,004,900,009.69/617,834.74
  6. Step 6: Final answer
    x = 527,657.12

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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.