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Finding the Fourth Proportional to 488,409.40, 732,030.90 and 251,630.20

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Solution

The fourth proportional to 488,409.40, 732,030.90 and 251,630.20 is: 377,144.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,409.40 : 732,030.90 = 251,630.20 : x
  2. Step 2: Convert to fraction form
    488,409.40/732,030.90 = 251,630.20/x
  3. Step 3: Cross multiply
    488,409.40x = 732,030.90 × 251,630.20
  4. Step 4: Simplify right side
    488,409.40x = 184,201,081,773.18
  5. Step 5: Solve for x
    x = 184,201,081,773.18/488,409.40
  6. Step 6: Final answer
    x = 377,144.83

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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.