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Finding the Fourth Proportional to 561,738.80, 842,608.20 and 532,870.40

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Solution

The fourth proportional to 561,738.80, 842,608.20 and 532,870.40 is: 799,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,738.80 : 842,608.20 = 532,870.40 : x
  2. Step 2: Convert to fraction form
    561,738.80/842,608.20 = 532,870.40/x
  3. Step 3: Cross multiply
    561,738.80x = 842,608.20 × 532,870.40
  4. Step 4: Simplify right side
    561,738.80x = 449,000,968,577.28
  5. Step 5: Solve for x
    x = 449,000,968,577.28/561,738.80
  6. Step 6: Final answer
    x = 799,305.60

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Similar ratio
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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.