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Finding the Fourth Proportional to 492,120.38, 679,126.06 and 265,765.88

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Solution

The fourth proportional to 492,120.38, 679,126.06 and 265,765.88 is: 366,756.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,120.38 : 679,126.06 = 265,765.88 : x
  2. Step 2: Convert to fraction form
    492,120.38/679,126.06 = 265,765.88/x
  3. Step 3: Cross multiply
    492,120.38x = 679,126.06 × 265,765.88
  4. Step 4: Simplify right side
    492,120.38x = 180,488,534,966.83
  5. Step 5: Solve for x
    x = 180,488,534,966.83/492,120.38
  6. Step 6: Final answer
    x = 366,756.88

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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.