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Finding the Fourth Proportional to 393,802.50, 590,734.80 and 194,013.89

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Solution

The fourth proportional to 393,802.50, 590,734.80 and 194,013.89 is: 291,036.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,802.50 : 590,734.80 = 194,013.89 : x
  2. Step 2: Convert to fraction form
    393,802.50/590,734.80 = 194,013.89/x
  3. Step 3: Cross multiply
    393,802.50x = 590,734.80 × 194,013.89
  4. Step 4: Simplify right side
    393,802.50x = 114,610,753,552.70
  5. Step 5: Solve for x
    x = 114,610,753,552.70/393,802.50
  6. Step 6: Final answer
    x = 291,036.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.