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Finding the Fourth Proportional to 307,799.20, 460,921.20 and 202,045.60

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Solution

The fourth proportional to 307,799.20, 460,921.20 and 202,045.60 is: 302,557.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,799.20 : 460,921.20 = 202,045.60 : x
  2. Step 2: Convert to fraction form
    307,799.20/460,921.20 = 202,045.60/x
  3. Step 3: Cross multiply
    307,799.20x = 460,921.20 × 202,045.60
  4. Step 4: Simplify right side
    307,799.20x = 93,127,100,406.72
  5. Step 5: Solve for x
    x = 93,127,100,406.72/307,799.20
  6. Step 6: Final answer
    x = 302,557.97

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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.