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Finding the Fourth Proportional to 493,615.69, 740,423.57 and 119,638.69

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Solution

The fourth proportional to 493,615.69, 740,423.57 and 119,638.69 is: 179,458.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,615.69 : 740,423.57 = 119,638.69 : x
  2. Step 2: Convert to fraction form
    493,615.69/740,423.57 = 119,638.69/x
  3. Step 3: Cross multiply
    493,615.69x = 740,423.57 × 119,638.69
  4. Step 4: Simplify right side
    493,615.69x = 88,583,303,510.67
  5. Step 5: Solve for x
    x = 88,583,303,510.67/493,615.69
  6. Step 6: Final answer
    x = 179,458.04

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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.