Home / 578,128.20-867,192.30-410,166.60

Finding the Fourth Proportional to 578,128.20, 867,192.30 and 410,166.60

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Solution

The fourth proportional to 578,128.20, 867,192.30 and 410,166.60 is: 615,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,128.20 : 867,192.30 = 410,166.60 : x
  2. Step 2: Convert to fraction form
    578,128.20/867,192.30 = 410,166.60/x
  3. Step 3: Cross multiply
    578,128.20x = 867,192.30 × 410,166.60
  4. Step 4: Simplify right side
    578,128.20x = 355,693,317,237.18
  5. Step 5: Solve for x
    x = 355,693,317,237.18/578,128.20
  6. Step 6: Final answer
    x = 615,249.90

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Double scale
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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.