Home / 615,538.14-849,456.96-386,105.16

Finding the Fourth Proportional to 615,538.14, 849,456.96 and 386,105.16

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Solution

The fourth proportional to 615,538.14, 849,456.96 and 386,105.16 is: 532,834.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,538.14 : 849,456.96 = 386,105.16 : x
  2. Step 2: Convert to fraction form
    615,538.14/849,456.96 = 386,105.16/x
  3. Step 3: Cross multiply
    615,538.14x = 849,456.96 × 386,105.16
  4. Step 4: Simplify right side
    615,538.14x = 327,979,715,453.91
  5. Step 5: Solve for x
    x = 327,979,715,453.91/615,538.14
  6. Step 6: Final answer
    x = 532,834.11

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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.