Home / 725,185.11-1,000,696.75-419,281.11

Finding the Fourth Proportional to 725,185.11, 1,000,696.75 and 419,281.11

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Solution

The fourth proportional to 725,185.11, 1,000,696.75 and 419,281.11 is: 578,573.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,185.11 : 1,000,696.75 = 419,281.11 : x
  2. Step 2: Convert to fraction form
    725,185.11/1,000,696.75 = 419,281.11/x
  3. Step 3: Cross multiply
    725,185.11x = 1,000,696.75 × 419,281.11
  4. Step 4: Simplify right side
    725,185.11x = 419,573,244,113.39
  5. Step 5: Solve for x
    x = 419,573,244,113.39/725,185.11
  6. Step 6: Final answer
    x = 578,573.99

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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.