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Finding the Fourth Proportional to 522,730.56, 784,104.44 and 143,648.93

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Solution

The fourth proportional to 522,730.56, 784,104.44 and 143,648.93 is: 215,475.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,730.56 : 784,104.44 = 143,648.93 : x
  2. Step 2: Convert to fraction form
    522,730.56/784,104.44 = 143,648.93/x
  3. Step 3: Cross multiply
    522,730.56x = 784,104.44 × 143,648.93
  4. Step 4: Simplify right side
    522,730.56x = 112,635,759,175.48
  5. Step 5: Solve for x
    x = 112,635,759,175.48/522,730.56
  6. Step 6: Final answer
    x = 215,475.75

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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.