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Finding the Fourth Proportional to 1,985,482.10, 2,979,482.82 and 848,252.87

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Solution

The fourth proportional to 1,985,482.10, 2,979,482.82 and 848,252.87 is: 1,272,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,482.10 : 2,979,482.82 = 848,252.87 : x
  2. Step 2: Convert to fraction form
    1,985,482.10/2,979,482.82 = 848,252.87/x
  3. Step 3: Cross multiply
    1,985,482.10x = 2,979,482.82 × 848,252.87
  4. Step 4: Simplify right side
    1,985,482.10x = 2,527,354,853,180.69
  5. Step 5: Solve for x
    x = 2,527,354,853,180.69/1,985,482.10
  6. Step 6: Final answer
    x = 1,272,917.47

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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.