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Finding the Fourth Proportional to 409,832.76, 565,440.30 and 246,415.80

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Solution

The fourth proportional to 409,832.76, 565,440.30 and 246,415.80 is: 339,976.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,832.76 : 565,440.30 = 246,415.80 : x
  2. Step 2: Convert to fraction form
    409,832.76/565,440.30 = 246,415.80/x
  3. Step 3: Cross multiply
    409,832.76x = 565,440.30 × 246,415.80
  4. Step 4: Simplify right side
    409,832.76x = 139,333,423,876.74
  5. Step 5: Solve for x
    x = 139,333,423,876.74/409,832.76
  6. Step 6: Final answer
    x = 339,976.30

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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.