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Finding the Fourth Proportional to 527,581.60, 728,314.80 and 301,183.36

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Solution

The fourth proportional to 527,581.60, 728,314.80 and 301,183.36 is: 415,777.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,581.60 : 728,314.80 = 301,183.36 : x
  2. Step 2: Convert to fraction form
    527,581.60/728,314.80 = 301,183.36/x
  3. Step 3: Cross multiply
    527,581.60x = 728,314.80 × 301,183.36
  4. Step 4: Simplify right side
    527,581.60x = 219,356,298,601.73
  5. Step 5: Solve for x
    x = 219,356,298,601.73/527,581.60
  6. Step 6: Final answer
    x = 415,777.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.