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Finding the Fourth Proportional to 493,621.40, 740,432.10 and 119,644.40

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Solution

The fourth proportional to 493,621.40, 740,432.10 and 119,644.40 is: 179,466.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,621.40 : 740,432.10 = 119,644.40 : x
  2. Step 2: Convert to fraction form
    493,621.40/740,432.10 = 119,644.40/x
  3. Step 3: Cross multiply
    493,621.40x = 740,432.10 × 119,644.40
  4. Step 4: Simplify right side
    493,621.40x = 88,588,554,345.24
  5. Step 5: Solve for x
    x = 88,588,554,345.24/493,621.40
  6. Step 6: Final answer
    x = 179,466.60

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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.