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Finding the Fourth Proportional to 1,973,920.80, 2,960,881.20 and 1,832,203.20

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Solution

The fourth proportional to 1,973,920.80, 2,960,881.20 and 1,832,203.20 is: 2,748,304.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973,920.80 : 2,960,881.20 = 1,832,203.20 : x
  2. Step 2: Convert to fraction form
    1,973,920.80/2,960,881.20 = 1,832,203.20/x
  3. Step 3: Cross multiply
    1,973,920.80x = 2,960,881.20 × 1,832,203.20
  4. Step 4: Simplify right side
    1,973,920.80x = 5,424,936,009,459.84
  5. Step 5: Solve for x
    x = 5,424,936,009,459.84/1,973,920.80
  6. Step 6: Final answer
    x = 2,748,304.80

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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.