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Finding the Fourth Proportional to 299,812.40, 449,848.20 and 152,068.40

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Solution

The fourth proportional to 299,812.40, 449,848.20 and 152,068.40 is: 228,168.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,812.40 : 449,848.20 = 152,068.40 : x
  2. Step 2: Convert to fraction form
    299,812.40/449,848.20 = 152,068.40/x
  3. Step 3: Cross multiply
    299,812.40x = 449,848.20 × 152,068.40
  4. Step 4: Simplify right side
    299,812.40x = 68,407,696,016.88
  5. Step 5: Solve for x
    x = 68,407,696,016.88/299,812.40
  6. Step 6: Final answer
    x = 228,168.33

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1.5x scale

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.