Home / 538,278.72-806,814.48-218,356.20

Finding the Fourth Proportional to 538,278.72, 806,814.48 and 218,356.20

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Solution

The fourth proportional to 538,278.72, 806,814.48 and 218,356.20 is: 327,289.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,278.72 : 806,814.48 = 218,356.20 : x
  2. Step 2: Convert to fraction form
    538,278.72/806,814.48 = 218,356.20/x
  3. Step 3: Cross multiply
    538,278.72x = 806,814.48 × 218,356.20
  4. Step 4: Simplify right side
    538,278.72x = 176,172,943,957.78
  5. Step 5: Solve for x
    x = 176,172,943,957.78/538,278.72
  6. Step 6: Final answer
    x = 327,289.45

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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.