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Finding the Fourth Proportional to 346,954.80, 520,086.60 and 159,639.60

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Solution

The fourth proportional to 346,954.80, 520,086.60 and 159,639.60 is: 239,300.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,954.80 : 520,086.60 = 159,639.60 : x
  2. Step 2: Convert to fraction form
    346,954.80/520,086.60 = 159,639.60/x
  3. Step 3: Cross multiply
    346,954.80x = 520,086.60 × 159,639.60
  4. Step 4: Simplify right side
    346,954.80x = 83,026,416,789.36
  5. Step 5: Solve for x
    x = 83,026,416,789.36/346,954.80
  6. Step 6: Final answer
    x = 239,300.38

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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.