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Finding the Fourth Proportional to 586,642.78, 879,964.17 and 271,058.68

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Solution

The fourth proportional to 586,642.78, 879,964.17 and 271,058.68 is: 406,588.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,642.78 : 879,964.17 = 271,058.68 : x
  2. Step 2: Convert to fraction form
    586,642.78/879,964.17 = 271,058.68/x
  3. Step 3: Cross multiply
    586,642.78x = 879,964.17 × 271,058.68
  4. Step 4: Simplify right side
    586,642.78x = 238,521,926,367.50
  5. Step 5: Solve for x
    x = 238,521,926,367.50/586,642.78
  6. Step 6: Final answer
    x = 406,588.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.