Home / 725,192.10-1,000,706.42-419,288.10

Finding the Fourth Proportional to 725,192.10, 1,000,706.42 and 419,288.10

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Solution

The fourth proportional to 725,192.10, 1,000,706.42 and 419,288.10 is: 578,583.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,192.10 : 1,000,706.42 = 419,288.10 : x
  2. Step 2: Convert to fraction form
    725,192.10/1,000,706.42 = 419,288.10/x
  3. Step 3: Cross multiply
    725,192.10x = 1,000,706.42 × 419,288.10
  4. Step 4: Simplify right side
    725,192.10x = 419,584,293,499.60
  5. Step 5: Solve for x
    x = 419,584,293,499.60/725,192.10
  6. Step 6: Final answer
    x = 578,583.65

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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.