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Finding the Fourth Proportional to 400,166.20, 561,165.80 and 400,166.20

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Solution

The fourth proportional to 400,166.20, 561,165.80 and 400,166.20 is: 561,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,166.20 : 561,165.80 = 400,166.20 : x
  2. Step 2: Convert to fraction form
    400,166.20/561,165.80 = 400,166.20/x
  3. Step 3: Cross multiply
    400,166.20x = 561,165.80 × 400,166.20
  4. Step 4: Simplify right side
    400,166.20x = 224,559,585,755.96
  5. Step 5: Solve for x
    x = 224,559,585,755.96/400,166.20
  6. Step 6: Final answer
    x = 561,165.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.