Home / 725,739.50-1,000,043.49-561,397.58

Finding the Fourth Proportional to 725,739.50, 1,000,043.49 and 561,397.58

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Solution

The fourth proportional to 725,739.50, 1,000,043.49 and 561,397.58 is: 773,586.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,739.50 : 1,000,043.49 = 561,397.58 : x
  2. Step 2: Convert to fraction form
    725,739.50/1,000,043.49 = 561,397.58/x
  3. Step 3: Cross multiply
    725,739.50x = 1,000,043.49 × 561,397.58
  4. Step 4: Simplify right side
    725,739.50x = 561,421,995,180.75
  5. Step 5: Solve for x
    x = 561,421,995,180.75/725,739.50
  6. Step 6: Final answer
    x = 773,586.11

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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.