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Finding the Fourth Proportional to 1,736,505.20, 2,599,228.20 and 1,238,841.20

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Solution

The fourth proportional to 1,736,505.20, 2,599,228.20 and 1,238,841.20 is: 1,854,316.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,736,505.20 : 2,599,228.20 = 1,238,841.20 : x
  2. Step 2: Convert to fraction form
    1,736,505.20/2,599,228.20 = 1,238,841.20/x
  3. Step 3: Cross multiply
    1,736,505.20x = 2,599,228.20 × 1,238,841.20
  4. Step 4: Simplify right side
    1,736,505.20x = 3,220,030,982,361.84
  5. Step 5: Solve for x
    x = 3,220,030,982,361.84/1,736,505.20
  6. Step 6: Final answer
    x = 1,854,316.92

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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.