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Finding the Fourth Proportional to 288,031.86, 432,608.31 and 234,763.20

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Solution

The fourth proportional to 288,031.86, 432,608.31 and 234,763.20 is: 352,601.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,031.86 : 432,608.31 = 234,763.20 : x
  2. Step 2: Convert to fraction form
    288,031.86/432,608.31 = 234,763.20/x
  3. Step 3: Cross multiply
    288,031.86x = 432,608.31 × 234,763.20
  4. Step 4: Simplify right side
    288,031.86x = 101,560,511,202.19
  5. Step 5: Solve for x
    x = 101,560,511,202.19/288,031.86
  6. Step 6: Final answer
    x = 352,601.66

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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.