Home / 445,528.35-668,390.94-221,010.93

Finding the Fourth Proportional to 445,528.35, 668,390.94 and 221,010.93

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Solution

The fourth proportional to 445,528.35, 668,390.94 and 221,010.93 is: 331,565.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,528.35 : 668,390.94 = 221,010.93 : x
  2. Step 2: Convert to fraction form
    445,528.35/668,390.94 = 221,010.93/x
  3. Step 3: Cross multiply
    445,528.35x = 668,390.94 × 221,010.93
  4. Step 4: Simplify right side
    445,528.35x = 147,721,703,252.97
  5. Step 5: Solve for x
    x = 147,721,703,252.97/445,528.35
  6. Step 6: Final answer
    x = 331,565.22

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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.