Home / 386,943.02-533,844.51-252,884.78

Finding the Fourth Proportional to 386,943.02, 533,844.51 and 252,884.78

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Solution

The fourth proportional to 386,943.02, 533,844.51 and 252,884.78 is: 348,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,943.02 : 533,844.51 = 252,884.78 : x
  2. Step 2: Convert to fraction form
    386,943.02/533,844.51 = 252,884.78/x
  3. Step 3: Cross multiply
    386,943.02x = 533,844.51 × 252,884.78
  4. Step 4: Simplify right side
    386,943.02x = 135,001,151,465.56
  5. Step 5: Solve for x
    x = 135,001,151,465.56/386,943.02
  6. Step 6: Final answer
    x = 348,891.55

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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.