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Finding the Fourth Proportional to 460,135.32, 690,272.64 and 144,562.56

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Solution

The fourth proportional to 460,135.32, 690,272.64 and 144,562.56 is: 216,865.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,135.32 : 690,272.64 = 144,562.56 : x
  2. Step 2: Convert to fraction form
    460,135.32/690,272.64 = 144,562.56/x
  3. Step 3: Cross multiply
    460,135.32x = 690,272.64 × 144,562.56
  4. Step 4: Simplify right side
    460,135.32x = 99,787,579,936.36
  5. Step 5: Solve for x
    x = 99,787,579,936.36/460,135.32
  6. Step 6: Final answer
    x = 216,865.73

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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.