Home / 725,196.72-1,000,712.80-419,292.74

Finding the Fourth Proportional to 725,196.72, 1,000,712.80 and 419,292.74

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Solution

The fourth proportional to 725,196.72, 1,000,712.80 and 419,292.74 is: 578,590.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,196.72 : 1,000,712.80 = 419,292.74 : x
  2. Step 2: Convert to fraction form
    725,196.72/1,000,712.80 = 419,292.74/x
  3. Step 3: Cross multiply
    725,196.72x = 1,000,712.80 × 419,292.74
  4. Step 4: Simplify right side
    725,196.72x = 419,591,611,865.07
  5. Step 5: Solve for x
    x = 419,591,611,865.07/725,196.72
  6. Step 6: Final answer
    x = 578,590.06

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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.