Home / 638,416.84-880,932.36-366,496.60

Finding the Fourth Proportional to 638,416.84, 880,932.36 and 366,496.60

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Solution

The fourth proportional to 638,416.84, 880,932.36 and 366,496.60 is: 505,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,416.84 : 880,932.36 = 366,496.60 : x
  2. Step 2: Convert to fraction form
    638,416.84/880,932.36 = 366,496.60/x
  3. Step 3: Cross multiply
    638,416.84x = 880,932.36 × 366,496.60
  4. Step 4: Simplify right side
    638,416.84x = 322,858,714,769.98
  5. Step 5: Solve for x
    x = 322,858,714,769.98/638,416.84
  6. Step 6: Final answer
    x = 505,717.73

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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.