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Finding the Fourth Proportional to 1,818,339.98, 2,733,489.40 and 1,686,808.14

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Solution

The fourth proportional to 1,818,339.98, 2,733,489.40 and 1,686,808.14 is: 2,535,759.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818,339.98 : 2,733,489.40 = 1,686,808.14 : x
  2. Step 2: Convert to fraction form
    1,818,339.98/2,733,489.40 = 1,686,808.14/x
  3. Step 3: Cross multiply
    1,818,339.98x = 2,733,489.40 × 1,686,808.14
  4. Step 4: Simplify right side
    1,818,339.98x = 4,610,872,170,523.72
  5. Step 5: Solve for x
    x = 4,610,872,170,523.72/1,818,339.98
  6. Step 6: Final answer
    x = 2,535,759.11

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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.