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Finding the Fourth Proportional to 375,508.80, 563,253.36 and 126,190.72

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Solution

The fourth proportional to 375,508.80, 563,253.36 and 126,190.72 is: 189,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,508.80 : 563,253.36 = 126,190.72 : x
  2. Step 2: Convert to fraction form
    375,508.80/563,253.36 = 126,190.72/x
  3. Step 3: Cross multiply
    375,508.80x = 563,253.36 × 126,190.72
  4. Step 4: Simplify right side
    375,508.80x = 71,077,347,040.82
  5. Step 5: Solve for x
    x = 71,077,347,040.82/375,508.80
  6. Step 6: Final answer
    x = 189,282.77

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1.5x scale

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.