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Finding the Fourth Proportional to 325,701.36, 488,616.40 and 157,338.80

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Solution

The fourth proportional to 325,701.36, 488,616.40 and 157,338.80 is: 236,039.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,701.36 : 488,616.40 = 157,338.80 : x
  2. Step 2: Convert to fraction form
    325,701.36/488,616.40 = 157,338.80/x
  3. Step 3: Cross multiply
    325,701.36x = 488,616.40 × 157,338.80
  4. Step 4: Simplify right side
    325,701.36x = 76,878,318,036.32
  5. Step 5: Solve for x
    x = 76,878,318,036.32/325,701.36
  6. Step 6: Final answer
    x = 236,039.29

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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.