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Finding the Fourth Proportional to 386,189.78, 532,960.16 and 241,081.52

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Solution

The fourth proportional to 386,189.78, 532,960.16 and 241,081.52 is: 332,703.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,189.78 : 532,960.16 = 241,081.52 : x
  2. Step 2: Convert to fraction form
    386,189.78/532,960.16 = 241,081.52/x
  3. Step 3: Cross multiply
    386,189.78x = 532,960.16 × 241,081.52
  4. Step 4: Simplify right side
    386,189.78x = 128,486,841,602.04
  5. Step 5: Solve for x
    x = 128,486,841,602.04/386,189.78
  6. Step 6: Final answer
    x = 332,703.89

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1.5x scale

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.