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Finding the Fourth Proportional to 1,874,870.88, 2,812,437.84 and 752,940

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Solution

The fourth proportional to 1,874,870.88, 2,812,437.84 and 752,940 is: 1,129,462.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874,870.88 : 2,812,437.84 = 752,940 : x
  2. Step 2: Convert to fraction form
    1,874,870.88/2,812,437.84 = 752,940/x
  3. Step 3: Cross multiply
    1,874,870.88x = 2,812,437.84 × 752,940
  4. Step 4: Simplify right side
    1,874,870.88x = 2,117,596,947,249.60
  5. Step 5: Solve for x
    x = 2,117,596,947,249.60/1,874,870.88
  6. Step 6: Final answer
    x = 1,129,462.82

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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.