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Finding the Fourth Proportional to 427,870.90, 590,443.59 and 234,275.09

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Solution

The fourth proportional to 427,870.90, 590,443.59 and 234,275.09 is: 323,289.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,870.90 : 590,443.59 = 234,275.09 : x
  2. Step 2: Convert to fraction form
    427,870.90/590,443.59 = 234,275.09/x
  3. Step 3: Cross multiply
    427,870.90x = 590,443.59 × 234,275.09
  4. Step 4: Simplify right side
    427,870.90x = 138,326,225,187.17
  5. Step 5: Solve for x
    x = 138,326,225,187.17/427,870.90
  6. Step 6: Final answer
    x = 323,289.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.