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Finding the Fourth Proportional to 425,039.78, 586,554.84 and 234,052.70

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Solution

The fourth proportional to 425,039.78, 586,554.84 and 234,052.70 is: 322,992.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,039.78 : 586,554.84 = 234,052.70 : x
  2. Step 2: Convert to fraction form
    425,039.78/586,554.84 = 234,052.70/x
  3. Step 3: Cross multiply
    425,039.78x = 586,554.84 × 234,052.70
  4. Step 4: Simplify right side
    425,039.78x = 137,284,744,000.07
  5. Step 5: Solve for x
    x = 137,284,744,000.07/425,039.78
  6. Step 6: Final answer
    x = 322,992.69

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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.