Home / 771,796.78-1,065,117.54-465,868.30

Finding the Fourth Proportional to 771,796.78, 1,065,117.54 and 465,868.30

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Solution

The fourth proportional to 771,796.78, 1,065,117.54 and 465,868.30 is: 642,921.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,796.78 : 1,065,117.54 = 465,868.30 : x
  2. Step 2: Convert to fraction form
    771,796.78/1,065,117.54 = 465,868.30/x
  3. Step 3: Cross multiply
    771,796.78x = 1,065,117.54 × 465,868.30
  4. Step 4: Simplify right side
    771,796.78x = 496,204,497,659.98
  5. Step 5: Solve for x
    x = 496,204,497,659.98/771,796.78
  6. Step 6: Final answer
    x = 642,921.18

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Double scale
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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.