Home / 615,540.34-849,459.90-386,107.30

Finding the Fourth Proportional to 615,540.34, 849,459.90 and 386,107.30

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Solution

The fourth proportional to 615,540.34, 849,459.90 and 386,107.30 is: 532,837.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,540.34 : 849,459.90 = 386,107.30 : x
  2. Step 2: Convert to fraction form
    615,540.34/849,459.90 = 386,107.30/x
  3. Step 3: Cross multiply
    615,540.34x = 849,459.90 × 386,107.30
  4. Step 4: Simplify right side
    615,540.34x = 327,982,668,447.27
  5. Step 5: Solve for x
    x = 327,982,668,447.27/615,540.34
  6. Step 6: Final answer
    x = 532,837.00

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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.