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Finding the Fourth Proportional to 808,843.40, 1,215,597.90 and 706,200.20

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Solution

The fourth proportional to 808,843.40, 1,215,597.90 and 706,200.20 is: 1,061,337.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,843.40 : 1,215,597.90 = 706,200.20 : x
  2. Step 2: Convert to fraction form
    808,843.40/1,215,597.90 = 706,200.20/x
  3. Step 3: Cross multiply
    808,843.40x = 1,215,597.90 × 706,200.20
  4. Step 4: Simplify right side
    808,843.40x = 858,455,480,099.58
  5. Step 5: Solve for x
    x = 858,455,480,099.58/808,843.40
  6. Step 6: Final answer
    x = 1,061,337.06

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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.