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Finding the Fourth Proportional to 622,651.40, 933,977.10 and 543,919.40

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Solution

The fourth proportional to 622,651.40, 933,977.10 and 543,919.40 is: 815,879.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,651.40 : 933,977.10 = 543,919.40 : x
  2. Step 2: Convert to fraction form
    622,651.40/933,977.10 = 543,919.40/x
  3. Step 3: Cross multiply
    622,651.40x = 933,977.10 × 543,919.40
  4. Step 4: Simplify right side
    622,651.40x = 508,008,263,845.74
  5. Step 5: Solve for x
    x = 508,008,263,845.74/622,651.40
  6. Step 6: Final answer
    x = 815,879.10

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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.