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Finding the Fourth Proportional to 593,902.80, 890,854.20 and 394,448.40

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Solution

The fourth proportional to 593,902.80, 890,854.20 and 394,448.40 is: 591,672.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,902.80 : 890,854.20 = 394,448.40 : x
  2. Step 2: Convert to fraction form
    593,902.80/890,854.20 = 394,448.40/x
  3. Step 3: Cross multiply
    593,902.80x = 890,854.20 × 394,448.40
  4. Step 4: Simplify right side
    593,902.80x = 351,396,013,823.28
  5. Step 5: Solve for x
    x = 351,396,013,823.28/593,902.80
  6. Step 6: Final answer
    x = 591,672.60

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Double scale
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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.