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Finding the Fourth Proportional to 409,960.91, 565,649.80 and 248,812.22

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Solution

The fourth proportional to 409,960.91, 565,649.80 and 248,812.22 is: 343,302.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,960.91 : 565,649.80 = 248,812.22 : x
  2. Step 2: Convert to fraction form
    409,960.91/565,649.80 = 248,812.22/x
  3. Step 3: Cross multiply
    409,960.91x = 565,649.80 × 248,812.22
  4. Step 4: Simplify right side
    409,960.91x = 140,740,583,272.65
  5. Step 5: Solve for x
    x = 140,740,583,272.65/409,960.91
  6. Step 6: Final answer
    x = 343,302.44

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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.