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Finding the Fourth Proportional to 704,851.82, 972,252.96 and 418,168.88

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Solution

The fourth proportional to 704,851.82, 972,252.96 and 418,168.88 is: 576,810.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,851.82 : 972,252.96 = 418,168.88 : x
  2. Step 2: Convert to fraction form
    704,851.82/972,252.96 = 418,168.88/x
  3. Step 3: Cross multiply
    704,851.82x = 972,252.96 × 418,168.88
  4. Step 4: Simplify right side
    704,851.82x = 406,565,926,498.62
  5. Step 5: Solve for x
    x = 406,565,926,498.62/704,851.82
  6. Step 6: Final answer
    x = 576,810.50

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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.