Home / 639,008.10-958,512.15-607,904.10

Finding the Fourth Proportional to 639,008.10, 958,512.15 and 607,904.10

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Solution

The fourth proportional to 639,008.10, 958,512.15 and 607,904.10 is: 911,856.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,008.10 : 958,512.15 = 607,904.10 : x
  2. Step 2: Convert to fraction form
    639,008.10/958,512.15 = 607,904.10/x
  3. Step 3: Cross multiply
    639,008.10x = 958,512.15 × 607,904.10
  4. Step 4: Simplify right side
    639,008.10x = 582,683,465,884.82
  5. Step 5: Solve for x
    x = 582,683,465,884.82/639,008.10
  6. Step 6: Final answer
    x = 911,856.15

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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.