Home / 262,543.20-393,555.60-129,314.40

Finding the Fourth Proportional to 262,543.20, 393,555.60 and 129,314.40

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Solution

The fourth proportional to 262,543.20, 393,555.60 and 129,314.40 is: 193,843.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,543.20 : 393,555.60 = 129,314.40 : x
  2. Step 2: Convert to fraction form
    262,543.20/393,555.60 = 129,314.40/x
  3. Step 3: Cross multiply
    262,543.20x = 393,555.60 × 129,314.40
  4. Step 4: Simplify right side
    262,543.20x = 50,892,406,280.64
  5. Step 5: Solve for x
    x = 50,892,406,280.64/262,543.20
  6. Step 6: Final answer
    x = 193,843.93

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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.