Home / 615,186.30-923,629.14-425,178.12

Finding the Fourth Proportional to 615,186.30, 923,629.14 and 425,178.12

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Solution

The fourth proportional to 615,186.30, 923,629.14 and 425,178.12 is: 638,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,186.30 : 923,629.14 = 425,178.12 : x
  2. Step 2: Convert to fraction form
    615,186.30/923,629.14 = 425,178.12/x
  3. Step 3: Cross multiply
    615,186.30x = 923,629.14 × 425,178.12
  4. Step 4: Simplify right side
    615,186.30x = 392,706,901,322.42
  5. Step 5: Solve for x
    x = 392,706,901,322.42/615,186.30
  6. Step 6: Final answer
    x = 638,354.43

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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.