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Finding the Fourth Proportional to 619,457.52, 929,211.47 and 295,078.86

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Solution

The fourth proportional to 619,457.52, 929,211.47 and 295,078.86 is: 442,630.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,457.52 : 929,211.47 = 295,078.86 : x
  2. Step 2: Convert to fraction form
    619,457.52/929,211.47 = 295,078.86/x
  3. Step 3: Cross multiply
    619,457.52x = 929,211.47 × 295,078.86
  4. Step 4: Simplify right side
    619,457.52x = 274,190,662,557.49
  5. Step 5: Solve for x
    x = 274,190,662,557.49/619,457.52
  6. Step 6: Final answer
    x = 442,630.29

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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.