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Finding the Fourth Proportional to 560,185.16, 773,055.06 and 305,535.56

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Solution

The fourth proportional to 560,185.16, 773,055.06 and 305,535.56 is: 421,638.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,185.16 : 773,055.06 = 305,535.56 : x
  2. Step 2: Convert to fraction form
    560,185.16/773,055.06 = 305,535.56/x
  3. Step 3: Cross multiply
    560,185.16x = 773,055.06 × 305,535.56
  4. Step 4: Simplify right side
    560,185.16x = 236,195,810,667.93
  5. Step 5: Solve for x
    x = 236,195,810,667.93/560,185.16
  6. Step 6: Final answer
    x = 421,638.82

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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.