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Finding the Fourth Proportional to 418,766.61, 577,880.42 and 246,691.63

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Solution

The fourth proportional to 418,766.61, 577,880.42 and 246,691.63 is: 340,424.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,766.61 : 577,880.42 = 246,691.63 : x
  2. Step 2: Convert to fraction form
    418,766.61/577,880.42 = 246,691.63/x
  3. Step 3: Cross multiply
    418,766.61x = 577,880.42 × 246,691.63
  4. Step 4: Simplify right side
    418,766.61x = 142,558,261,926.91
  5. Step 5: Solve for x
    x = 142,558,261,926.91/418,766.61
  6. Step 6: Final answer
    x = 340,424.14

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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.