Home / 578,736.60-868,104.90-368,784.60

Finding the Fourth Proportional to 578,736.60, 868,104.90 and 368,784.60

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Solution

The fourth proportional to 578,736.60, 868,104.90 and 368,784.60 is: 553,176.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,736.60 : 868,104.90 = 368,784.60 : x
  2. Step 2: Convert to fraction form
    578,736.60/868,104.90 = 368,784.60/x
  3. Step 3: Cross multiply
    578,736.60x = 868,104.90 × 368,784.60
  4. Step 4: Simplify right side
    578,736.60x = 320,143,718,304.54
  5. Step 5: Solve for x
    x = 320,143,718,304.54/578,736.60
  6. Step 6: Final answer
    x = 553,176.90

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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.