Home / 405,789.78-560,011.14-233,733.90

Finding the Fourth Proportional to 405,789.78, 560,011.14 and 233,733.90

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Solution

The fourth proportional to 405,789.78, 560,011.14 and 233,733.90 is: 322,565.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,789.78 : 560,011.14 = 233,733.90 : x
  2. Step 2: Convert to fraction form
    405,789.78/560,011.14 = 233,733.90/x
  3. Step 3: Cross multiply
    405,789.78x = 560,011.14 × 233,733.90
  4. Step 4: Simplify right side
    405,789.78x = 130,893,587,795.65
  5. Step 5: Solve for x
    x = 130,893,587,795.65/405,789.78
  6. Step 6: Final answer
    x = 322,565.02

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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.