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Finding the Fourth Proportional to 493,605.15, 740,407.72 and 119,628.15

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Solution

The fourth proportional to 493,605.15, 740,407.72 and 119,628.15 is: 179,442.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,605.15 : 740,407.72 = 119,628.15 : x
  2. Step 2: Convert to fraction form
    493,605.15/740,407.72 = 119,628.15/x
  3. Step 3: Cross multiply
    493,605.15x = 740,407.72 × 119,628.15
  4. Step 4: Simplify right side
    493,605.15x = 88,573,605,191.18
  5. Step 5: Solve for x
    x = 88,573,605,191.18/493,605.15
  6. Step 6: Final answer
    x = 179,442.22

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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.