Home / 578,811.30-868,314.58-199,630.60

Finding the Fourth Proportional to 578,811.30, 868,314.58 and 199,630.60

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Solution

The fourth proportional to 578,811.30, 868,314.58 and 199,630.60 is: 299,479.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,811.30 : 868,314.58 = 199,630.60 : x
  2. Step 2: Convert to fraction form
    578,811.30/868,314.58 = 199,630.60/x
  3. Step 3: Cross multiply
    578,811.30x = 868,314.58 × 199,630.60
  4. Step 4: Simplify right side
    578,811.30x = 173,342,160,594.15
  5. Step 5: Solve for x
    x = 173,342,160,594.15/578,811.30
  6. Step 6: Final answer
    x = 299,479.57

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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.