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Finding the Fourth Proportional to 542,808.01, 749,060.60 and 313,357.55

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Solution

The fourth proportional to 542,808.01, 749,060.60 and 313,357.55 is: 432,425.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,808.01 : 749,060.60 = 313,357.55 : x
  2. Step 2: Convert to fraction form
    542,808.01/749,060.60 = 313,357.55/x
  3. Step 3: Cross multiply
    542,808.01x = 749,060.60 × 313,357.55
  4. Step 4: Simplify right side
    542,808.01x = 234,723,789,105.44
  5. Step 5: Solve for x
    x = 234,723,789,105.44/542,808.01
  6. Step 6: Final answer
    x = 432,425.06

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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.