Home / 657,743.59-983,764.78-387,227.08

Finding the Fourth Proportional to 657,743.59, 983,764.78 and 387,227.08

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Solution

The fourth proportional to 657,743.59, 983,764.78 and 387,227.08 is: 579,162.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,743.59 : 983,764.78 = 387,227.08 : x
  2. Step 2: Convert to fraction form
    657,743.59/983,764.78 = 387,227.08/x
  3. Step 3: Cross multiply
    657,743.59x = 983,764.78 × 387,227.08
  4. Step 4: Simplify right side
    657,743.59x = 380,940,363,166.24
  5. Step 5: Solve for x
    x = 380,940,363,166.24/657,743.59
  6. Step 6: Final answer
    x = 579,162.41

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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.