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Finding the Fourth Proportional to 361,588.52, 542,330.44 and 253,189.01

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Solution

The fourth proportional to 361,588.52, 542,330.44 and 253,189.01 is: 379,746.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,588.52 : 542,330.44 = 253,189.01 : x
  2. Step 2: Convert to fraction form
    361,588.52/542,330.44 = 253,189.01/x
  3. Step 3: Cross multiply
    361,588.52x = 542,330.44 × 253,189.01
  4. Step 4: Simplify right side
    361,588.52x = 137,312,107,196.46
  5. Step 5: Solve for x
    x = 137,312,107,196.46/361,588.52
  6. Step 6: Final answer
    x = 379,746.87

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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.