Home / 689,077.74-951,218.91-646,033.26

Finding the Fourth Proportional to 689,077.74, 951,218.91 and 646,033.26

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Solution

The fourth proportional to 689,077.74, 951,218.91 and 646,033.26 is: 891,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,077.74 : 951,218.91 = 646,033.26 : x
  2. Step 2: Convert to fraction form
    689,077.74/951,218.91 = 646,033.26/x
  3. Step 3: Cross multiply
    689,077.74x = 951,218.91 × 646,033.26
  4. Step 4: Simplify right side
    689,077.74x = 614,519,053,400.95
  5. Step 5: Solve for x
    x = 614,519,053,400.95/689,077.74
  6. Step 6: Final answer
    x = 891,799.31

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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.