Home / 776,764.32-1,165,209.36-215,798.88

Finding the Fourth Proportional to 776,764.32, 1,165,209.36 and 215,798.88

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Solution

The fourth proportional to 776,764.32, 1,165,209.36 and 215,798.88 is: 323,715.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,764.32 : 1,165,209.36 = 215,798.88 : x
  2. Step 2: Convert to fraction form
    776,764.32/1,165,209.36 = 215,798.88/x
  3. Step 3: Cross multiply
    776,764.32x = 1,165,209.36 × 215,798.88
  4. Step 4: Simplify right side
    776,764.32x = 251,450,874,853.52
  5. Step 5: Solve for x
    x = 251,450,874,853.52/776,764.32
  6. Step 6: Final answer
    x = 323,715.79

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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.