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Finding the Fourth Proportional to 383,534.91, 529,058.70 and 240,045.84

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Solution

The fourth proportional to 383,534.91, 529,058.70 and 240,045.84 is: 331,125.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,534.91 : 529,058.70 = 240,045.84 : x
  2. Step 2: Convert to fraction form
    383,534.91/529,058.70 = 240,045.84/x
  3. Step 3: Cross multiply
    383,534.91x = 529,058.70 × 240,045.84
  4. Step 4: Simplify right side
    383,534.91x = 126,998,340,050.81
  5. Step 5: Solve for x
    x = 126,998,340,050.81/383,534.91
  6. Step 6: Final answer
    x = 331,125.89

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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.