Home / 771,614.56-1,065,107.52-628,125.52

Finding the Fourth Proportional to 771,614.56, 1,065,107.52 and 628,125.52

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Solution

The fourth proportional to 771,614.56, 1,065,107.52 and 628,125.52 is: 867,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,614.56 : 1,065,107.52 = 628,125.52 : x
  2. Step 2: Convert to fraction form
    771,614.56/1,065,107.52 = 628,125.52/x
  3. Step 3: Cross multiply
    771,614.56x = 1,065,107.52 × 628,125.52
  4. Step 4: Simplify right side
    771,614.56x = 669,021,214,855.91
  5. Step 5: Solve for x
    x = 669,021,214,855.91/771,614.56
  6. Step 6: Final answer
    x = 867,040.68

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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.