Home / 817,764.51-1,226,646.48-218,710.11

Finding the Fourth Proportional to 817,764.51, 1,226,646.48 and 218,710.11

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Solution

The fourth proportional to 817,764.51, 1,226,646.48 and 218,710.11 is: 328,065.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,764.51 : 1,226,646.48 = 218,710.11 : x
  2. Step 2: Convert to fraction form
    817,764.51/1,226,646.48 = 218,710.11/x
  3. Step 3: Cross multiply
    817,764.51x = 1,226,646.48 × 218,710.11
  4. Step 4: Simplify right side
    817,764.51x = 268,279,986,571.91
  5. Step 5: Solve for x
    x = 268,279,986,571.91/817,764.51
  6. Step 6: Final answer
    x = 328,065.09

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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.