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Finding the Fourth Proportional to 4,901,876.97, 7,352,868.90 and 1,490,718.30

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Solution

The fourth proportional to 4,901,876.97, 7,352,868.90 and 1,490,718.30 is: 2,236,093.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901,876.97 : 7,352,868.90 = 1,490,718.30 : x
  2. Step 2: Convert to fraction form
    4,901,876.97/7,352,868.90 = 1,490,718.30/x
  3. Step 3: Cross multiply
    4,901,876.97x = 7,352,868.90 × 1,490,718.30
  4. Step 4: Simplify right side
    4,901,876.97x = 10,961,056,226,730.87
  5. Step 5: Solve for x
    x = 10,961,056,226,730.87/4,901,876.97
  6. Step 6: Final answer
    x = 2,236,093.70

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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.