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Finding the Fourth Proportional to 363,869.10, 545,998.05 and 164,220.30

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Solution

The fourth proportional to 363,869.10, 545,998.05 and 164,220.30 is: 246,418.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,869.10 : 545,998.05 = 164,220.30 : x
  2. Step 2: Convert to fraction form
    363,869.10/545,998.05 = 164,220.30/x
  3. Step 3: Cross multiply
    363,869.10x = 545,998.05 × 164,220.30
  4. Step 4: Simplify right side
    363,869.10x = 89,663,963,570.42
  5. Step 5: Solve for x
    x = 89,663,963,570.42/363,869.10
  6. Step 6: Final answer
    x = 246,418.19

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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.