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Finding the Fourth Proportional to 547,448.90, 821,027.55 and 168,368.90

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Solution

The fourth proportional to 547,448.90, 821,027.55 and 168,368.90 is: 252,508.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,448.90 : 821,027.55 = 168,368.90 : x
  2. Step 2: Convert to fraction form
    547,448.90/821,027.55 = 168,368.90/x
  3. Step 3: Cross multiply
    547,448.90x = 821,027.55 × 168,368.90
  4. Step 4: Simplify right side
    547,448.90x = 138,235,505,463.20
  5. Step 5: Solve for x
    x = 138,235,505,463.20/547,448.90
  6. Step 6: Final answer
    x = 252,508.51

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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.