Home / 578,190.20-867,580.77-386,195.55

Finding the Fourth Proportional to 578,190.20, 867,580.77 and 386,195.55

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Solution

The fourth proportional to 578,190.20, 867,580.77 and 386,195.55 is: 579,490.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,190.20 : 867,580.77 = 386,195.55 : x
  2. Step 2: Convert to fraction form
    578,190.20/867,580.77 = 386,195.55/x
  3. Step 3: Cross multiply
    578,190.20x = 867,580.77 × 386,195.55
  4. Step 4: Simplify right side
    578,190.20x = 335,055,830,834.38
  5. Step 5: Solve for x
    x = 335,055,830,834.38/578,190.20
  6. Step 6: Final answer
    x = 579,490.68

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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.