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Finding the Fourth Proportional to 490,499.19, 735,935.59 and 170,686.59

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Solution

The fourth proportional to 490,499.19, 735,935.59 and 170,686.59 is: 256,094.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,499.19 : 735,935.59 = 170,686.59 : x
  2. Step 2: Convert to fraction form
    490,499.19/735,935.59 = 170,686.59/x
  3. Step 3: Cross multiply
    490,499.19x = 735,935.59 × 170,686.59
  4. Step 4: Simplify right side
    490,499.19x = 125,614,335,463.31
  5. Step 5: Solve for x
    x = 125,614,335,463.31/490,499.19
  6. Step 6: Final answer
    x = 256,094.89

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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.