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Finding the Fourth Proportional to 593,490.40, 890,235.60 and 278,562.40

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Solution

The fourth proportional to 593,490.40, 890,235.60 and 278,562.40 is: 417,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,490.40 : 890,235.60 = 278,562.40 : x
  2. Step 2: Convert to fraction form
    593,490.40/890,235.60 = 278,562.40/x
  3. Step 3: Cross multiply
    593,490.40x = 890,235.60 × 278,562.40
  4. Step 4: Simplify right side
    593,490.40x = 247,986,165,301.44
  5. Step 5: Solve for x
    x = 247,986,165,301.44/593,490.40
  6. Step 6: Final answer
    x = 417,843.60

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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.