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Finding the Fourth Proportional to 460,855.89, 690,371.44 and 217,363.51

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Solution

The fourth proportional to 460,855.89, 690,371.44 and 217,363.51 is: 325,614.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,855.89 : 690,371.44 = 217,363.51 : x
  2. Step 2: Convert to fraction form
    460,855.89/690,371.44 = 217,363.51/x
  3. Step 3: Cross multiply
    460,855.89x = 690,371.44 × 217,363.51
  4. Step 4: Simplify right side
    460,855.89x = 150,061,559,721.71
  5. Step 5: Solve for x
    x = 150,061,559,721.71/460,855.89
  6. Step 6: Final answer
    x = 325,614.93

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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.