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Finding the Fourth Proportional to 1,338,957.12, 1,846,949.40 and 794,734.32

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Solution

The fourth proportional to 1,338,957.12, 1,846,949.40 and 794,734.32 is: 1,096,251.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,957.12 : 1,846,949.40 = 794,734.32 : x
  2. Step 2: Convert to fraction form
    1,338,957.12/1,846,949.40 = 794,734.32/x
  3. Step 3: Cross multiply
    1,338,957.12x = 1,846,949.40 × 794,734.32
  4. Step 4: Simplify right side
    1,338,957.12x = 1,467,834,075,483.41
  5. Step 5: Solve for x
    x = 1,467,834,075,483.41/1,338,957.12
  6. Step 6: Final answer
    x = 1,096,251.74

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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.