Home / 834,146.16-1,150,961.40-528,007.20

Finding the Fourth Proportional to 834,146.16, 1,150,961.40 and 528,007.20

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Solution

The fourth proportional to 834,146.16, 1,150,961.40 and 528,007.20 is: 728,548.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,146.16 : 1,150,961.40 = 528,007.20 : x
  2. Step 2: Convert to fraction form
    834,146.16/1,150,961.40 = 528,007.20/x
  3. Step 3: Cross multiply
    834,146.16x = 1,150,961.40 × 528,007.20
  4. Step 4: Simplify right side
    834,146.16x = 607,715,906,122.08
  5. Step 5: Solve for x
    x = 607,715,906,122.08/834,146.16
  6. Step 6: Final answer
    x = 728,548.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.