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Finding the Fourth Proportional to 623,874.32, 860,949.14 and 337,394.40

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Solution

The fourth proportional to 623,874.32, 860,949.14 and 337,394.40 is: 465,605.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,874.32 : 860,949.14 = 337,394.40 : x
  2. Step 2: Convert to fraction form
    623,874.32/860,949.14 = 337,394.40/x
  3. Step 3: Cross multiply
    623,874.32x = 860,949.14 × 337,394.40
  4. Step 4: Simplify right side
    623,874.32x = 290,479,418,520.82
  5. Step 5: Solve for x
    x = 290,479,418,520.82/623,874.32
  6. Step 6: Final answer
    x = 465,605.67

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1.5x scale

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.