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Finding the Fourth Proportional to 353,345.28, 487,775.70 and 232,549.98

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Solution

The fourth proportional to 353,345.28, 487,775.70 and 232,549.98 is: 321,023.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,345.28 : 487,775.70 = 232,549.98 : x
  2. Step 2: Convert to fraction form
    353,345.28/487,775.70 = 232,549.98/x
  3. Step 3: Cross multiply
    353,345.28x = 487,775.70 × 232,549.98
  4. Step 4: Simplify right side
    353,345.28x = 113,432,229,279.49
  5. Step 5: Solve for x
    x = 113,432,229,279.49/353,345.28
  6. Step 6: Final answer
    x = 321,023.76

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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.