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Finding the Fourth Proportional to 586,357.60, 878,404.56 and 349,889.44

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Solution

The fourth proportional to 586,357.60, 878,404.56 and 349,889.44 is: 524,158.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,357.60 : 878,404.56 = 349,889.44 : x
  2. Step 2: Convert to fraction form
    586,357.60/878,404.56 = 349,889.44/x
  3. Step 3: Cross multiply
    586,357.60x = 878,404.56 × 349,889.44
  4. Step 4: Simplify right side
    586,357.60x = 307,344,479,591.85
  5. Step 5: Solve for x
    x = 307,344,479,591.85/586,357.60
  6. Step 6: Final answer
    x = 524,158.77

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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.