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Finding the Fourth Proportional to 276,031.80, 413,010.90 and 251,148.60

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Solution

The fourth proportional to 276,031.80, 413,010.90 and 251,148.60 is: 375,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,031.80 : 413,010.90 = 251,148.60 : x
  2. Step 2: Convert to fraction form
    276,031.80/413,010.90 = 251,148.60/x
  3. Step 3: Cross multiply
    276,031.80x = 413,010.90 × 251,148.60
  4. Step 4: Simplify right side
    276,031.80x = 103,727,109,319.74
  5. Step 5: Solve for x
    x = 103,727,109,319.74/276,031.80
  6. Step 6: Final answer
    x = 375,779.56

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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.