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Finding the Fourth Proportional to 332,854.20, 499,346.10 and 143,314.20

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Solution

The fourth proportional to 332,854.20, 499,346.10 and 143,314.20 is: 214,999.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,854.20 : 499,346.10 = 143,314.20 : x
  2. Step 2: Convert to fraction form
    332,854.20/499,346.10 = 143,314.20/x
  3. Step 3: Cross multiply
    332,854.20x = 499,346.10 × 143,314.20
  4. Step 4: Simplify right side
    332,854.20x = 71,563,386,844.62
  5. Step 5: Solve for x
    x = 71,563,386,844.62/332,854.20
  6. Step 6: Final answer
    x = 214,999.20

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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.