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Finding the Fourth Proportional to 406,019.61, 560,364.35 and 236,308.41

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Solution

The fourth proportional to 406,019.61, 560,364.35 and 236,308.41 is: 326,138.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,019.61 : 560,364.35 = 236,308.41 : x
  2. Step 2: Convert to fraction form
    406,019.61/560,364.35 = 236,308.41/x
  3. Step 3: Cross multiply
    406,019.61x = 560,364.35 × 236,308.41
  4. Step 4: Simplify right side
    406,019.61x = 132,418,807,387.64
  5. Step 5: Solve for x
    x = 132,418,807,387.64/406,019.61
  6. Step 6: Final answer
    x = 326,138.95

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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.