Home / 579,220.40-867,664.20-401,927.60

Finding the Fourth Proportional to 579,220.40, 867,664.20 and 401,927.60

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Solution

The fourth proportional to 579,220.40, 867,664.20 and 401,927.60 is: 602,082.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,220.40 : 867,664.20 = 401,927.60 : x
  2. Step 2: Convert to fraction form
    579,220.40/867,664.20 = 401,927.60/x
  3. Step 3: Cross multiply
    579,220.40x = 867,664.20 × 401,927.60
  4. Step 4: Simplify right side
    579,220.40x = 348,738,189,511.92
  5. Step 5: Solve for x
    x = 348,738,189,511.92/579,220.40
  6. Step 6: Final answer
    x = 602,082.02

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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.