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Finding the Fourth Proportional to 3,796,572.64, 5,241,715.46 and 3,387,971.79

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Solution

The fourth proportional to 3,796,572.64, 5,241,715.46 and 3,387,971.79 is: 4,677,583.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,796,572.64 : 5,241,715.46 = 3,387,971.79 : x
  2. Step 2: Convert to fraction form
    3,796,572.64/5,241,715.46 = 3,387,971.79/x
  3. Step 3: Cross multiply
    3,796,572.64x = 5,241,715.46 × 3,387,971.79
  4. Step 4: Simplify right side
    3,796,572.64x = 17,758,784,109,686.88
  5. Step 5: Solve for x
    x = 17,758,784,109,686.88/3,796,572.64
  6. Step 6: Final answer
    x = 4,677,583.12

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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.