Home / 401,787.83-554,430.54-238,416.18

Finding the Fourth Proportional to 401,787.83, 554,430.54 and 238,416.18

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Solution

The fourth proportional to 401,787.83, 554,430.54 and 238,416.18 is: 328,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,787.83 : 554,430.54 = 238,416.18 : x
  2. Step 2: Convert to fraction form
    401,787.83/554,430.54 = 238,416.18/x
  3. Step 3: Cross multiply
    401,787.83x = 554,430.54 × 238,416.18
  4. Step 4: Simplify right side
    401,787.83x = 132,185,211,422.14
  5. Step 5: Solve for x
    x = 132,185,211,422.14/401,787.83
  6. Step 6: Final answer
    x = 328,992.57

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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.