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Finding the Fourth Proportional to 640,096.63, 883,351.17 and 353,635.17

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Solution

The fourth proportional to 640,096.63, 883,351.17 and 353,635.17 is: 488,026.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,096.63 : 883,351.17 = 353,635.17 : x
  2. Step 2: Convert to fraction form
    640,096.63/883,351.17 = 353,635.17/x
  3. Step 3: Cross multiply
    640,096.63x = 883,351.17 × 353,635.17
  4. Step 4: Simplify right side
    640,096.63x = 312,384,037,860.08
  5. Step 5: Solve for x
    x = 312,384,037,860.08/640,096.63
  6. Step 6: Final answer
    x = 488,026.38

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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.