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Finding the Fourth Proportional to 514,965.60, 772,521.30 and 159,942.60

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Solution

The fourth proportional to 514,965.60, 772,521.30 and 159,942.60 is: 239,936.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,965.60 : 772,521.30 = 159,942.60 : x
  2. Step 2: Convert to fraction form
    514,965.60/772,521.30 = 159,942.60/x
  3. Step 3: Cross multiply
    514,965.60x = 772,521.30 × 159,942.60
  4. Step 4: Simplify right side
    514,965.60x = 123,559,065,277.38
  5. Step 5: Solve for x
    x = 123,559,065,277.38/514,965.60
  6. Step 6: Final answer
    x = 239,936.54

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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.