Home / 445,974.39-615,187.30-284,647.63

Finding the Fourth Proportional to 445,974.39, 615,187.30 and 284,647.63

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Solution

The fourth proportional to 445,974.39, 615,187.30 and 284,647.63 is: 392,649.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,974.39 : 615,187.30 = 284,647.63 : x
  2. Step 2: Convert to fraction form
    445,974.39/615,187.30 = 284,647.63/x
  3. Step 3: Cross multiply
    445,974.39x = 615,187.30 × 284,647.63
  4. Step 4: Simplify right side
    445,974.39x = 175,111,606,951.10
  5. Step 5: Solve for x
    x = 175,111,606,951.10/445,974.39
  6. Step 6: Final answer
    x = 392,649.47

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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.