Home / 638,718.90-958,232.24-239,363.20

Finding the Fourth Proportional to 638,718.90, 958,232.24 and 239,363.20

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Solution

The fourth proportional to 638,718.90, 958,232.24 and 239,363.20 is: 359,102.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,718.90 : 958,232.24 = 239,363.20 : x
  2. Step 2: Convert to fraction form
    638,718.90/958,232.24 = 239,363.20/x
  3. Step 3: Cross multiply
    638,718.90x = 958,232.24 × 239,363.20
  4. Step 4: Simplify right side
    638,718.90x = 229,365,535,309.57
  5. Step 5: Solve for x
    x = 229,365,535,309.57/638,718.90
  6. Step 6: Final answer
    x = 359,102.47

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Double scale
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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.