Home / 405,105.64-558,998.14-223,806.76

Finding the Fourth Proportional to 405,105.64, 558,998.14 and 223,806.76

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Solution

The fourth proportional to 405,105.64, 558,998.14 and 223,806.76 is: 308,827.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,105.64 : 558,998.14 = 223,806.76 : x
  2. Step 2: Convert to fraction form
    405,105.64/558,998.14 = 223,806.76/x
  3. Step 3: Cross multiply
    405,105.64x = 558,998.14 × 223,806.76
  4. Step 4: Simplify right side
    405,105.64x = 125,107,561,886.82
  5. Step 5: Solve for x
    x = 125,107,561,886.82/405,105.64
  6. Step 6: Final answer
    x = 308,827.00

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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.