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Finding the Fourth Proportional to 299,810.40, 449,845.20 and 152,066.40

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Solution

The fourth proportional to 299,810.40, 449,845.20 and 152,066.40 is: 228,165.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,810.40 : 449,845.20 = 152,066.40 : x
  2. Step 2: Convert to fraction form
    299,810.40/449,845.20 = 152,066.40/x
  3. Step 3: Cross multiply
    299,810.40x = 449,845.20 × 152,066.40
  4. Step 4: Simplify right side
    299,810.40x = 68,406,340,121.28
  5. Step 5: Solve for x
    x = 68,406,340,121.28/299,810.40
  6. Step 6: Final answer
    x = 228,165.33

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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.