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Finding the Fourth Proportional to 288,049.20, 432,073.80 and 235,561.20

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Solution

The fourth proportional to 288,049.20, 432,073.80 and 235,561.20 is: 353,341.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,049.20 : 432,073.80 = 235,561.20 : x
  2. Step 2: Convert to fraction form
    288,049.20/432,073.80 = 235,561.20/x
  3. Step 3: Cross multiply
    288,049.20x = 432,073.80 × 235,561.20
  4. Step 4: Simplify right side
    288,049.20x = 101,779,822,816.56
  5. Step 5: Solve for x
    x = 101,779,822,816.56/288,049.20
  6. Step 6: Final answer
    x = 353,341.80

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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.