Home / 578,128.80-867,193.20-365,552.40

Finding the Fourth Proportional to 578,128.80, 867,193.20 and 365,552.40

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Solution

The fourth proportional to 578,128.80, 867,193.20 and 365,552.40 is: 548,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,128.80 : 867,193.20 = 365,552.40 : x
  2. Step 2: Convert to fraction form
    578,128.80/867,193.20 = 365,552.40/x
  3. Step 3: Cross multiply
    578,128.80x = 867,193.20 × 365,552.40
  4. Step 4: Simplify right side
    578,128.80x = 317,004,555,523.68
  5. Step 5: Solve for x
    x = 317,004,555,523.68/578,128.80
  6. Step 6: Final answer
    x = 548,328.60

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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.