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Finding the Fourth Proportional to 295,321.80, 442,982.70 and 216,006.60

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Solution

The fourth proportional to 295,321.80, 442,982.70 and 216,006.60 is: 324,009.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,321.80 : 442,982.70 = 216,006.60 : x
  2. Step 2: Convert to fraction form
    295,321.80/442,982.70 = 216,006.60/x
  3. Step 3: Cross multiply
    295,321.80x = 442,982.70 × 216,006.60
  4. Step 4: Simplify right side
    295,321.80x = 95,687,186,885.82
  5. Step 5: Solve for x
    x = 95,687,186,885.82/295,321.80
  6. Step 6: Final answer
    x = 324,009.90

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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.