Home / 717,542.58-990,278.76-535,939.56

Finding the Fourth Proportional to 717,542.58, 990,278.76 and 535,939.56

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Solution

The fourth proportional to 717,542.58, 990,278.76 and 535,939.56 is: 739,648.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,542.58 : 990,278.76 = 535,939.56 : x
  2. Step 2: Convert to fraction form
    717,542.58/990,278.76 = 535,939.56/x
  3. Step 3: Cross multiply
    717,542.58x = 990,278.76 × 535,939.56
  4. Step 4: Simplify right side
    717,542.58x = 530,729,562,911.75
  5. Step 5: Solve for x
    x = 530,729,562,911.75/717,542.58
  6. Step 6: Final answer
    x = 739,648.88

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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.