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Finding the Fourth Proportional to 364,972.80, 547,070.40 and 140,246.40

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Solution

The fourth proportional to 364,972.80, 547,070.40 and 140,246.40 is: 210,220.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,972.80 : 547,070.40 = 140,246.40 : x
  2. Step 2: Convert to fraction form
    364,972.80/547,070.40 = 140,246.40/x
  3. Step 3: Cross multiply
    364,972.80x = 547,070.40 × 140,246.40
  4. Step 4: Simplify right side
    364,972.80x = 76,724,654,146.56
  5. Step 5: Solve for x
    x = 76,724,654,146.56/364,972.80
  6. Step 6: Final answer
    x = 210,220.20

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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.