Home / 511,340.46-705,645.04-278,767.36

Finding the Fourth Proportional to 511,340.46, 705,645.04 and 278,767.36

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Solution

The fourth proportional to 511,340.46, 705,645.04 and 278,767.36 is: 384,696.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,340.46 : 705,645.04 = 278,767.36 : x
  2. Step 2: Convert to fraction form
    511,340.46/705,645.04 = 278,767.36/x
  3. Step 3: Cross multiply
    511,340.46x = 705,645.04 × 278,767.36
  4. Step 4: Simplify right side
    511,340.46x = 196,710,805,397.44
  5. Step 5: Solve for x
    x = 196,710,805,397.44/511,340.46
  6. Step 6: Final answer
    x = 384,696.35

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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.