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Finding the Fourth Proportional to 690,380.97, 952,234.97 and 460,822.51

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Solution

The fourth proportional to 690,380.97, 952,234.97 and 460,822.51 is: 635,607.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,380.97 : 952,234.97 = 460,822.51 : x
  2. Step 2: Convert to fraction form
    690,380.97/952,234.97 = 460,822.51/x
  3. Step 3: Cross multiply
    690,380.97x = 952,234.97 × 460,822.51
  4. Step 4: Simplify right side
    690,380.97x = 438,811,307,871.36
  5. Step 5: Solve for x
    x = 438,811,307,871.36/690,380.97
  6. Step 6: Final answer
    x = 635,607.48

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Half scale
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Double scale
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Similar ratio
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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.