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Finding the Fourth Proportional to 409,991.60, 565,560.96 and 240,192.92

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Solution

The fourth proportional to 409,991.60, 565,560.96 and 240,192.92 is: 331,332.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,991.60 : 565,560.96 = 240,192.92 : x
  2. Step 2: Convert to fraction form
    409,991.60/565,560.96 = 240,192.92/x
  3. Step 3: Cross multiply
    409,991.60x = 565,560.96 × 240,192.92
  4. Step 4: Simplify right side
    409,991.60x = 135,843,738,420.40
  5. Step 5: Solve for x
    x = 135,843,738,420.40/409,991.60
  6. Step 6: Final answer
    x = 331,332.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.