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Finding the Fourth Proportional to 324,666.60, 486,999.90 and 88,008.90

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Solution

The fourth proportional to 324,666.60, 486,999.90 and 88,008.90 is: 132,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,666.60 : 486,999.90 = 88,008.90 : x
  2. Step 2: Convert to fraction form
    324,666.60/486,999.90 = 88,008.90/x
  3. Step 3: Cross multiply
    324,666.60x = 486,999.90 × 88,008.90
  4. Step 4: Simplify right side
    324,666.60x = 42,860,325,499.11
  5. Step 5: Solve for x
    x = 42,860,325,499.11/324,666.60
  6. Step 6: Final answer
    x = 132,013.35

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Similar ratio
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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.