Home / 817,765.51-1,226,647.98-218,711.11

Finding the Fourth Proportional to 817,765.51, 1,226,647.98 and 218,711.11

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Solution

The fourth proportional to 817,765.51, 1,226,647.98 and 218,711.11 is: 328,066.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,765.51 : 1,226,647.98 = 218,711.11 : x
  2. Step 2: Convert to fraction form
    817,765.51/1,226,647.98 = 218,711.11/x
  3. Step 3: Cross multiply
    817,765.51x = 1,226,647.98 × 218,711.11
  4. Step 4: Simplify right side
    817,765.51x = 268,281,541,285.06
  5. Step 5: Solve for x
    x = 268,281,541,285.06/817,765.51
  6. Step 6: Final answer
    x = 328,066.59

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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.