Home / 1,327,788.75-1,991,440.12-355,165.60

Finding the Fourth Proportional to 1,327,788.75, 1,991,440.12 and 355,165.60

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Solution

The fourth proportional to 1,327,788.75, 1,991,440.12 and 355,165.60 is: 532,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,788.75 : 1,991,440.12 = 355,165.60 : x
  2. Step 2: Convert to fraction form
    1,327,788.75/1,991,440.12 = 355,165.60/x
  3. Step 3: Cross multiply
    1,327,788.75x = 1,991,440.12 × 355,165.60
  4. Step 4: Simplify right side
    1,327,788.75x = 707,291,025,083.87
  5. Step 5: Solve for x
    x = 707,291,025,083.87/1,327,788.75
  6. Step 6: Final answer
    x = 532,683.40

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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.