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Finding the Fourth Proportional to 5,361,957.32, 8,042,865.92 and 1,318,480.17

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Solution

The fourth proportional to 5,361,957.32, 8,042,865.92 and 1,318,480.17 is: 1,977,703.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,361,957.32 : 8,042,865.92 = 1,318,480.17 : x
  2. Step 2: Convert to fraction form
    5,361,957.32/8,042,865.92 = 1,318,480.17/x
  3. Step 3: Cross multiply
    5,361,957.32x = 8,042,865.92 × 1,318,480.17
  4. Step 4: Simplify right side
    5,361,957.32x = 10,604,359,238,607.29
  5. Step 5: Solve for x
    x = 10,604,359,238,607.29/5,361,957.32
  6. Step 6: Final answer
    x = 1,977,703.03

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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.