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Finding the Fourth Proportional to 423,079.73, 583,846.62 and 229,486.96

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Solution

The fourth proportional to 423,079.73, 583,846.62 and 229,486.96 is: 316,690.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,079.73 : 583,846.62 = 229,486.96 : x
  2. Step 2: Convert to fraction form
    423,079.73/583,846.62 = 229,486.96/x
  3. Step 3: Cross multiply
    423,079.73x = 583,846.62 × 229,486.96
  4. Step 4: Simplify right side
    423,079.73x = 133,985,181,863.41
  5. Step 5: Solve for x
    x = 133,985,181,863.41/423,079.73
  6. Step 6: Final answer
    x = 316,690.15

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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.