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Finding the Fourth Proportional to 591,056.70, 886,001.85 and 291,291.90

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Solution

The fourth proportional to 591,056.70, 886,001.85 and 291,291.90 is: 436,650.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,056.70 : 886,001.85 = 291,291.90 : x
  2. Step 2: Convert to fraction form
    591,056.70/886,001.85 = 291,291.90/x
  3. Step 3: Cross multiply
    591,056.70x = 886,001.85 × 291,291.90
  4. Step 4: Simplify right side
    591,056.70x = 258,085,162,290.02
  5. Step 5: Solve for x
    x = 258,085,162,290.02/591,056.70
  6. Step 6: Final answer
    x = 436,650.43

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Double scale
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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.