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Finding the Fourth Proportional to 650,763.20, 976,054.80 and 201,792.80

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Solution

The fourth proportional to 650,763.20, 976,054.80 and 201,792.80 is: 302,661.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,763.20 : 976,054.80 = 201,792.80 : x
  2. Step 2: Convert to fraction form
    650,763.20/976,054.80 = 201,792.80/x
  3. Step 3: Cross multiply
    650,763.20x = 976,054.80 × 201,792.80
  4. Step 4: Simplify right side
    650,763.20x = 196,960,831,045.44
  5. Step 5: Solve for x
    x = 196,960,831,045.44/650,763.20
  6. Step 6: Final answer
    x = 302,661.29

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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.