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Finding the Fourth Proportional to 353,560.80, 529,880.40 and 163,999.20

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Solution

The fourth proportional to 353,560.80, 529,880.40 and 163,999.20 is: 245,785.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,560.80 : 529,880.40 = 163,999.20 : x
  2. Step 2: Convert to fraction form
    353,560.80/529,880.40 = 163,999.20/x
  3. Step 3: Cross multiply
    353,560.80x = 529,880.40 × 163,999.20
  4. Step 4: Simplify right side
    353,560.80x = 86,899,961,695.68
  5. Step 5: Solve for x
    x = 86,899,961,695.68/353,560.80
  6. Step 6: Final answer
    x = 245,785.06

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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.