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Finding the Fourth Proportional to 407,711.17, 562,922.88 and 254,818.08

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Solution

The fourth proportional to 407,711.17, 562,922.88 and 254,818.08 is: 351,824.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,711.17 : 562,922.88 = 254,818.08 : x
  2. Step 2: Convert to fraction form
    407,711.17/562,922.88 = 254,818.08/x
  3. Step 3: Cross multiply
    407,711.17x = 562,922.88 × 254,818.08
  4. Step 4: Simplify right side
    407,711.17x = 143,442,927,469.67
  5. Step 5: Solve for x
    x = 143,442,927,469.67/407,711.17
  6. Step 6: Final answer
    x = 351,824.87

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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.