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Finding the Fourth Proportional to 850,793.84, 1,174,023.21 and 488,209.89

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Solution

The fourth proportional to 850,793.84, 1,174,023.21 and 488,209.89 is: 673,688.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,793.84 : 1,174,023.21 = 488,209.89 : x
  2. Step 2: Convert to fraction form
    850,793.84/1,174,023.21 = 488,209.89/x
  3. Step 3: Cross multiply
    850,793.84x = 1,174,023.21 × 488,209.89
  4. Step 4: Simplify right side
    850,793.84x = 573,169,742,211.55
  5. Step 5: Solve for x
    x = 573,169,742,211.55/850,793.84
  6. Step 6: Final answer
    x = 673,688.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.