Home / 405,111.95-559,060.35-223,828.05

Finding the Fourth Proportional to 405,111.95, 559,060.35 and 223,828.05

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Solution

The fourth proportional to 405,111.95, 559,060.35 and 223,828.05 is: 308,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,111.95 : 559,060.35 = 223,828.05 : x
  2. Step 2: Convert to fraction form
    405,111.95/559,060.35 = 223,828.05/x
  3. Step 3: Cross multiply
    405,111.95x = 559,060.35 × 223,828.05
  4. Step 4: Simplify right side
    405,111.95x = 125,133,389,546.13
  5. Step 5: Solve for x
    x = 125,133,389,546.13/405,111.95
  6. Step 6: Final answer
    x = 308,885.95

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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.