Home / 401,761.38-554,437.51-220,490.18

Finding the Fourth Proportional to 401,761.38, 554,437.51 and 220,490.18

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Solution

The fourth proportional to 401,761.38, 554,437.51 and 220,490.18 is: 304,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,761.38 : 554,437.51 = 220,490.18 : x
  2. Step 2: Convert to fraction form
    401,761.38/554,437.51 = 220,490.18/x
  3. Step 3: Cross multiply
    401,761.38x = 554,437.51 × 220,490.18
  4. Step 4: Simplify right side
    401,761.38x = 122,248,026,378.65
  5. Step 5: Solve for x
    x = 122,248,026,378.65/401,761.38
  6. Step 6: Final answer
    x = 304,280.18

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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.