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Finding the Fourth Proportional to 3,362.68, 4,640.31 and 1,870.31

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Solution

The fourth proportional to 3,362.68, 4,640.31 and 1,870.31 is: 2,580.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,362.68 : 4,640.31 = 1,870.31 : x
  2. Step 2: Convert to fraction form
    3,362.68/4,640.31 = 1,870.31/x
  3. Step 3: Cross multiply
    3,362.68x = 4,640.31 × 1,870.31
  4. Step 4: Simplify right side
    3,362.68x = 8,678,794.99
  5. Step 5: Solve for x
    x = 8,678,794.99/3,362.68
  6. Step 6: Final answer
    x = 2,580.92

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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.