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Finding the Fourth Proportional to 1,865,601.80, 2,799,093.90 and 744,475.40

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Solution

The fourth proportional to 1,865,601.80, 2,799,093.90 and 744,475.40 is: 1,116,988.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,601.80 : 2,799,093.90 = 744,475.40 : x
  2. Step 2: Convert to fraction form
    1,865,601.80/2,799,093.90 = 744,475.40/x
  3. Step 3: Cross multiply
    1,865,601.80x = 2,799,093.90 × 744,475.40
  4. Step 4: Simplify right side
    1,865,601.80x = 2,083,856,550,840.06
  5. Step 5: Solve for x
    x = 2,083,856,550,840.06/1,865,601.80
  6. Step 6: Final answer
    x = 1,116,988.93

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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.