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Finding the Fourth Proportional to 449,377.62, 619,856.32 and 341,711.60

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Solution

The fourth proportional to 449,377.62, 619,856.32 and 341,711.60 is: 471,345.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,377.62 : 619,856.32 = 341,711.60 : x
  2. Step 2: Convert to fraction form
    449,377.62/619,856.32 = 341,711.60/x
  3. Step 3: Cross multiply
    449,377.62x = 619,856.32 × 341,711.60
  4. Step 4: Simplify right side
    449,377.62x = 211,812,094,877.31
  5. Step 5: Solve for x
    x = 211,812,094,877.31/449,377.62
  6. Step 6: Final answer
    x = 471,345.45

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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.