Home / 445,972.89-615,185.23-284,646.13

Finding the Fourth Proportional to 445,972.89, 615,185.23 and 284,646.13

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Solution

The fourth proportional to 445,972.89, 615,185.23 and 284,646.13 is: 392,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,972.89 : 615,185.23 = 284,646.13 : x
  2. Step 2: Convert to fraction form
    445,972.89/615,185.23 = 284,646.13/x
  3. Step 3: Cross multiply
    445,972.89x = 615,185.23 × 284,646.13
  4. Step 4: Simplify right side
    445,972.89x = 175,110,091,876.73
  5. Step 5: Solve for x
    x = 175,110,091,876.73/445,972.89
  6. Step 6: Final answer
    x = 392,647.40

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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.