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Finding the Fourth Proportional to 365,655.20, 548,264.10 and 188,508.20

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Solution

The fourth proportional to 365,655.20, 548,264.10 and 188,508.20 is: 282,649.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,655.20 : 548,264.10 = 188,508.20 : x
  2. Step 2: Convert to fraction form
    365,655.20/548,264.10 = 188,508.20/x
  3. Step 3: Cross multiply
    365,655.20x = 548,264.10 × 188,508.20
  4. Step 4: Simplify right side
    365,655.20x = 103,352,278,615.62
  5. Step 5: Solve for x
    x = 103,352,278,615.62/365,655.20
  6. Step 6: Final answer
    x = 282,649.55

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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.