Home / 615,579.75-849,514.37-386,146.71

Finding the Fourth Proportional to 615,579.75, 849,514.37 and 386,146.71

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Solution

The fourth proportional to 615,579.75, 849,514.37 and 386,146.71 is: 532,891.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,579.75 : 849,514.37 = 386,146.71 : x
  2. Step 2: Convert to fraction form
    615,579.75/849,514.37 = 386,146.71/x
  3. Step 3: Cross multiply
    615,579.75x = 849,514.37 × 386,146.71
  4. Step 4: Simplify right side
    615,579.75x = 328,037,177,142.49
  5. Step 5: Solve for x
    x = 328,037,177,142.49/615,579.75
  6. Step 6: Final answer
    x = 532,891.44

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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.