Home / 774,400.80-1,161,601.20-606,439.20

Finding the Fourth Proportional to 774,400.80, 1,161,601.20 and 606,439.20

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Solution

The fourth proportional to 774,400.80, 1,161,601.20 and 606,439.20 is: 909,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,400.80 : 1,161,601.20 = 606,439.20 : x
  2. Step 2: Convert to fraction form
    774,400.80/1,161,601.20 = 606,439.20/x
  3. Step 3: Cross multiply
    774,400.80x = 1,161,601.20 × 606,439.20
  4. Step 4: Simplify right side
    774,400.80x = 704,440,502,447.04
  5. Step 5: Solve for x
    x = 704,440,502,447.04/774,400.80
  6. Step 6: Final answer
    x = 909,658.80

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Double scale
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Similar ratio
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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.