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Finding the Fourth Proportional to 623,492.60, 860,419.31 and 337,012.68

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Solution

The fourth proportional to 623,492.60, 860,419.31 and 337,012.68 is: 465,077.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,492.60 : 860,419.31 = 337,012.68 : x
  2. Step 2: Convert to fraction form
    623,492.60/860,419.31 = 337,012.68/x
  3. Step 3: Cross multiply
    623,492.60x = 860,419.31 × 337,012.68
  4. Step 4: Simplify right side
    623,492.60x = 289,972,215,901.79
  5. Step 5: Solve for x
    x = 289,972,215,901.79/623,492.60
  6. Step 6: Final answer
    x = 465,077.24

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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.