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Finding the Fourth Proportional to 488,363.40, 732,326.40 and 188,744.40

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Solution

The fourth proportional to 488,363.40, 732,326.40 and 188,744.40 is: 283,032.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,363.40 : 732,326.40 = 188,744.40 : x
  2. Step 2: Convert to fraction form
    488,363.40/732,326.40 = 188,744.40/x
  3. Step 3: Cross multiply
    488,363.40x = 732,326.40 × 188,744.40
  4. Step 4: Simplify right side
    488,363.40x = 138,222,506,972.16
  5. Step 5: Solve for x
    x = 138,222,506,972.16/488,363.40
  6. Step 6: Final answer
    x = 283,032.08

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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.