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Finding the Fourth Proportional to 244,655.40, 366,983.10 and 78,460.20

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Solution

The fourth proportional to 244,655.40, 366,983.10 and 78,460.20 is: 117,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,655.40 : 366,983.10 = 78,460.20 : x
  2. Step 2: Convert to fraction form
    244,655.40/366,983.10 = 78,460.20/x
  3. Step 3: Cross multiply
    244,655.40x = 366,983.10 × 78,460.20
  4. Step 4: Simplify right side
    244,655.40x = 28,793,567,422.62
  5. Step 5: Solve for x
    x = 28,793,567,422.62/244,655.40
  6. Step 6: Final answer
    x = 117,690.30

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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.