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Finding the Fourth Proportional to 1,865,991.40, 2,575,315.54 and 1,050,353.40

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Solution

The fourth proportional to 1,865,991.40, 2,575,315.54 and 1,050,353.40 is: 1,449,626.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,991.40 : 2,575,315.54 = 1,050,353.40 : x
  2. Step 2: Convert to fraction form
    1,865,991.40/2,575,315.54 = 1,050,353.40/x
  3. Step 3: Cross multiply
    1,865,991.40x = 2,575,315.54 × 1,050,353.40
  4. Step 4: Simplify right side
    1,865,991.40x = 2,704,991,433,511.84
  5. Step 5: Solve for x
    x = 2,704,991,433,511.84/1,865,991.40
  6. Step 6: Final answer
    x = 1,449,626.96

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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.