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Finding the Fourth Proportional to 631,167.60, 870,184.80 and 467,306.64

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Solution

The fourth proportional to 631,167.60, 870,184.80 and 467,306.64 is: 644,271.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,167.60 : 870,184.80 = 467,306.64 : x
  2. Step 2: Convert to fraction form
    631,167.60/870,184.80 = 467,306.64/x
  3. Step 3: Cross multiply
    631,167.60x = 870,184.80 × 467,306.64
  4. Step 4: Simplify right side
    631,167.60x = 406,643,135,067.07
  5. Step 5: Solve for x
    x = 406,643,135,067.07/631,167.60
  6. Step 6: Final answer
    x = 644,271.24

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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.