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Finding the Fourth Proportional to 5,988,779.40, 8,981,711.10 and 1,728,503.40

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Solution

The fourth proportional to 5,988,779.40, 8,981,711.10 and 1,728,503.40 is: 2,592,334.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,988,779.40 : 8,981,711.10 = 1,728,503.40 : x
  2. Step 2: Convert to fraction form
    5,988,779.40/8,981,711.10 = 1,728,503.40/x
  3. Step 3: Cross multiply
    5,988,779.40x = 8,981,711.10 × 1,728,503.40
  4. Step 4: Simplify right side
    5,988,779.40x = 15,524,918,174,167.74
  5. Step 5: Solve for x
    x = 15,524,918,174,167.74/5,988,779.40
  6. Step 6: Final answer
    x = 2,592,334.29

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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.