Home / 896,899.20-1,238,902.36-664,796.66

Finding the Fourth Proportional to 896,899.20, 1,238,902.36 and 664,796.66

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Solution

The fourth proportional to 896,899.20, 1,238,902.36 and 664,796.66 is: 918,295.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,899.20 : 1,238,902.36 = 664,796.66 : x
  2. Step 2: Convert to fraction form
    896,899.20/1,238,902.36 = 664,796.66/x
  3. Step 3: Cross multiply
    896,899.20x = 1,238,902.36 × 664,796.66
  4. Step 4: Simplify right side
    896,899.20x = 823,618,144,799.61
  5. Step 5: Solve for x
    x = 823,618,144,799.61/896,899.20
  6. Step 6: Final answer
    x = 918,295.11

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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.