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Finding the Fourth Proportional to 558,793.78, 771,152.14 and 344,057.74

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Solution

The fourth proportional to 558,793.78, 771,152.14 and 344,057.74 is: 474,809.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,793.78 : 771,152.14 = 344,057.74 : x
  2. Step 2: Convert to fraction form
    558,793.78/771,152.14 = 344,057.74/x
  3. Step 3: Cross multiply
    558,793.78x = 771,152.14 × 344,057.74
  4. Step 4: Simplify right side
    558,793.78x = 265,320,862,484.56
  5. Step 5: Solve for x
    x = 265,320,862,484.56/558,793.78
  6. Step 6: Final answer
    x = 474,809.98

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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.