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Finding the Fourth Proportional to 1,788,899.84, 2,681,483.04 and 724,676.48

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Solution

The fourth proportional to 1,788,899.84, 2,681,483.04 and 724,676.48 is: 1,086,258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,899.84 : 2,681,483.04 = 724,676.48 : x
  2. Step 2: Convert to fraction form
    1,788,899.84/2,681,483.04 = 724,676.48/x
  3. Step 3: Cross multiply
    1,788,899.84x = 2,681,483.04 × 724,676.48
  4. Step 4: Simplify right side
    1,788,899.84x = 1,943,207,690,606.90
  5. Step 5: Solve for x
    x = 1,943,207,690,606.90/1,788,899.84
  6. Step 6: Final answer
    x = 1,086,258.52

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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.