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Finding the Fourth Proportional to 694,531.60, 1,039,723.80 and 413,904.40

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Solution

The fourth proportional to 694,531.60, 1,039,723.80 and 413,904.40 is: 619,620.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,531.60 : 1,039,723.80 = 413,904.40 : x
  2. Step 2: Convert to fraction form
    694,531.60/1,039,723.80 = 413,904.40/x
  3. Step 3: Cross multiply
    694,531.60x = 1,039,723.80 × 413,904.40
  4. Step 4: Simplify right side
    694,531.60x = 430,346,255,604.72
  5. Step 5: Solve for x
    x = 430,346,255,604.72/694,531.60
  6. Step 6: Final answer
    x = 619,620.84

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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.