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Finding the Fourth Proportional to 673,991.40, 1,010,706.03 and 274,360.89

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Solution

The fourth proportional to 673,991.40, 1,010,706.03 and 274,360.89 is: 411,426.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,991.40 : 1,010,706.03 = 274,360.89 : x
  2. Step 2: Convert to fraction form
    673,991.40/1,010,706.03 = 274,360.89/x
  3. Step 3: Cross multiply
    673,991.40x = 1,010,706.03 × 274,360.89
  4. Step 4: Simplify right side
    673,991.40x = 277,298,205,919.17
  5. Step 5: Solve for x
    x = 277,298,205,919.17/673,991.40
  6. Step 6: Final answer
    x = 411,426.92

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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.