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Finding the Fourth Proportional to 445,848.60, 668,772.90 and 293,633.40

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Solution

The fourth proportional to 445,848.60, 668,772.90 and 293,633.40 is: 440,450.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,848.60 : 668,772.90 = 293,633.40 : x
  2. Step 2: Convert to fraction form
    445,848.60/668,772.90 = 293,633.40/x
  3. Step 3: Cross multiply
    445,848.60x = 668,772.90 × 293,633.40
  4. Step 4: Simplify right side
    445,848.60x = 196,374,060,454.86
  5. Step 5: Solve for x
    x = 196,374,060,454.86/445,848.60
  6. Step 6: Final answer
    x = 440,450.10

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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.