Home / 838,979.66-1,157,759.19-512,838.69

Finding the Fourth Proportional to 838,979.66, 1,157,759.19 and 512,838.69

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Solution

The fourth proportional to 838,979.66, 1,157,759.19 and 512,838.69 is: 707,697.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,979.66 : 1,157,759.19 = 512,838.69 : x
  2. Step 2: Convert to fraction form
    838,979.66/1,157,759.19 = 512,838.69/x
  3. Step 3: Cross multiply
    838,979.66x = 1,157,759.19 × 512,838.69
  4. Step 4: Simplify right side
    838,979.66x = 593,743,706,335.06
  5. Step 5: Solve for x
    x = 593,743,706,335.06/838,979.66
  6. Step 6: Final answer
    x = 707,697.38

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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.