Home / 689,261.10-1,031,558.85-605,280.30

Finding the Fourth Proportional to 689,261.10, 1,031,558.85 and 605,280.30

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Solution

The fourth proportional to 689,261.10, 1,031,558.85 and 605,280.30 is: 905,871.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,261.10 : 1,031,558.85 = 605,280.30 : x
  2. Step 2: Convert to fraction form
    689,261.10/1,031,558.85 = 605,280.30/x
  3. Step 3: Cross multiply
    689,261.10x = 1,031,558.85 × 605,280.30
  4. Step 4: Simplify right side
    689,261.10x = 624,382,250,195.66
  5. Step 5: Solve for x
    x = 624,382,250,195.66/689,261.10
  6. Step 6: Final answer
    x = 905,871.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.