Home / 401,788.83-554,431.92-238,417.18

Finding the Fourth Proportional to 401,788.83, 554,431.92 and 238,417.18

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Solution

The fourth proportional to 401,788.83, 554,431.92 and 238,417.18 is: 328,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,788.83 : 554,431.92 = 238,417.18 : x
  2. Step 2: Convert to fraction form
    401,788.83/554,431.92 = 238,417.18/x
  3. Step 3: Cross multiply
    401,788.83x = 554,431.92 × 238,417.18
  4. Step 4: Simplify right side
    401,788.83x = 132,186,094,868.39
  5. Step 5: Solve for x
    x = 132,186,094,868.39/401,788.83
  6. Step 6: Final answer
    x = 328,993.95

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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.