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Finding the Fourth Proportional to 410,824.80, 616,820.40 and 253,360.80

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Solution

The fourth proportional to 410,824.80, 616,820.40 and 253,360.80 is: 380,400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,824.80 : 616,820.40 = 253,360.80 : x
  2. Step 2: Convert to fraction form
    410,824.80/616,820.40 = 253,360.80/x
  3. Step 3: Cross multiply
    410,824.80x = 616,820.40 × 253,360.80
  4. Step 4: Simplify right side
    410,824.80x = 156,278,110,000.32
  5. Step 5: Solve for x
    x = 156,278,110,000.32/410,824.80
  6. Step 6: Final answer
    x = 380,400.87

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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.