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Finding the Fourth Proportional to 482,239.36, 665,551.92 and 316,808.80

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Solution

The fourth proportional to 482,239.36, 665,551.92 and 316,808.80 is: 437,236.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,239.36 : 665,551.92 = 316,808.80 : x
  2. Step 2: Convert to fraction form
    482,239.36/665,551.92 = 316,808.80/x
  3. Step 3: Cross multiply
    482,239.36x = 665,551.92 × 316,808.80
  4. Step 4: Simplify right side
    482,239.36x = 210,852,705,112.90
  5. Step 5: Solve for x
    x = 210,852,705,112.90/482,239.36
  6. Step 6: Final answer
    x = 437,236.61

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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.