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Finding the Fourth Proportional to 350,472.20, 524,930.70 and 140,001.80

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Solution

The fourth proportional to 350,472.20, 524,930.70 and 140,001.80 is: 209,692.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,472.20 : 524,930.70 = 140,001.80 : x
  2. Step 2: Convert to fraction form
    350,472.20/524,930.70 = 140,001.80/x
  3. Step 3: Cross multiply
    350,472.20x = 524,930.70 × 140,001.80
  4. Step 4: Simplify right side
    350,472.20x = 73,491,242,875.26
  5. Step 5: Solve for x
    x = 73,491,242,875.26/350,472.20
  6. Step 6: Final answer
    x = 209,692.08

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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.