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Finding the Fourth Proportional to 410,999.80, 616,110.90 and 242,649.40

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Solution

The fourth proportional to 410,999.80, 616,110.90 and 242,649.40 is: 363,744.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,999.80 : 616,110.90 = 242,649.40 : x
  2. Step 2: Convert to fraction form
    410,999.80/616,110.90 = 242,649.40/x
  3. Step 3: Cross multiply
    410,999.80x = 616,110.90 × 242,649.40
  4. Step 4: Simplify right side
    410,999.80x = 149,498,940,218.46
  5. Step 5: Solve for x
    x = 149,498,940,218.46/410,999.80
  6. Step 6: Final answer
    x = 363,744.56

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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.