Home / 526,145.20-789,217.80-230,657.20

Finding the Fourth Proportional to 526,145.20, 789,217.80 and 230,657.20

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Solution

The fourth proportional to 526,145.20, 789,217.80 and 230,657.20 is: 345,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,145.20 : 789,217.80 = 230,657.20 : x
  2. Step 2: Convert to fraction form
    526,145.20/789,217.80 = 230,657.20/x
  3. Step 3: Cross multiply
    526,145.20x = 789,217.80 × 230,657.20
  4. Step 4: Simplify right side
    526,145.20x = 182,038,767,938.16
  5. Step 5: Solve for x
    x = 182,038,767,938.16/526,145.20
  6. Step 6: Final answer
    x = 345,985.80

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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.