Home / 517,979.07-714,921.39-348,114.78

Finding the Fourth Proportional to 517,979.07, 714,921.39 and 348,114.78

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Solution

The fourth proportional to 517,979.07, 714,921.39 and 348,114.78 is: 480,472.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,979.07 : 714,921.39 = 348,114.78 : x
  2. Step 2: Convert to fraction form
    517,979.07/714,921.39 = 348,114.78/x
  3. Step 3: Cross multiply
    517,979.07x = 714,921.39 × 348,114.78
  4. Step 4: Simplify right side
    517,979.07x = 248,874,702,397.14
  5. Step 5: Solve for x
    x = 248,874,702,397.14/517,979.07
  6. Step 6: Final answer
    x = 480,472.51

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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.