Home / 441,141.40-661,421.72-290,923.66

Finding the Fourth Proportional to 441,141.40, 661,421.72 and 290,923.66

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Solution

The fourth proportional to 441,141.40, 661,421.72 and 290,923.66 is: 436,193.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,141.40 : 661,421.72 = 290,923.66 : x
  2. Step 2: Convert to fraction form
    441,141.40/661,421.72 = 290,923.66/x
  3. Step 3: Cross multiply
    441,141.40x = 661,421.72 × 290,923.66
  4. Step 4: Simplify right side
    441,141.40x = 192,423,227,585.90
  5. Step 5: Solve for x
    x = 192,423,227,585.90/441,141.40
  6. Step 6: Final answer
    x = 436,193.99

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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.