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Finding the Fourth Proportional to 3,653,369.56, 5,478,694.98 and 1,256,541.40

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Solution

The fourth proportional to 3,653,369.56, 5,478,694.98 and 1,256,541.40 is: 1,884,344.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653,369.56 : 5,478,694.98 = 1,256,541.40 : x
  2. Step 2: Convert to fraction form
    3,653,369.56/5,478,694.98 = 1,256,541.40/x
  3. Step 3: Cross multiply
    3,653,369.56x = 5,478,694.98 × 1,256,541.40
  4. Step 4: Simplify right side
    3,653,369.56x = 6,884,207,060,342.17
  5. Step 5: Solve for x
    x = 6,884,207,060,342.17/3,653,369.56
  6. Step 6: Final answer
    x = 1,884,344.56

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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.