Home / 725,184.14-1,000,695.45-419,280.15

Finding the Fourth Proportional to 725,184.14, 1,000,695.45 and 419,280.15

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Solution

The fourth proportional to 725,184.14, 1,000,695.45 and 419,280.15 is: 578,572.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,184.14 : 1,000,695.45 = 419,280.15 : x
  2. Step 2: Convert to fraction form
    725,184.14/1,000,695.45 = 419,280.15/x
  3. Step 3: Cross multiply
    725,184.14x = 1,000,695.45 × 419,280.15
  4. Step 4: Simplify right side
    725,184.14x = 419,571,738,380.32
  5. Step 5: Solve for x
    x = 419,571,738,380.32/725,184.14
  6. Step 6: Final answer
    x = 578,572.69

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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.