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Finding the Fourth Proportional to 493,479.90, 740,219.85 and 488,814.30

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Solution

The fourth proportional to 493,479.90, 740,219.85 and 488,814.30 is: 733,221.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,479.90 : 740,219.85 = 488,814.30 : x
  2. Step 2: Convert to fraction form
    493,479.90/740,219.85 = 488,814.30/x
  3. Step 3: Cross multiply
    493,479.90x = 740,219.85 × 488,814.30
  4. Step 4: Simplify right side
    493,479.90x = 361,830,047,823.86
  5. Step 5: Solve for x
    x = 361,830,047,823.86/493,479.90
  6. Step 6: Final answer
    x = 733,221.45

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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.