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Finding the Fourth Proportional to 577,896.40, 866,844.60 and 400,603.60

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Solution

The fourth proportional to 577,896.40, 866,844.60 and 400,603.60 is: 600,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,896.40 : 866,844.60 = 400,603.60 : x
  2. Step 2: Convert to fraction form
    577,896.40/866,844.60 = 400,603.60/x
  3. Step 3: Cross multiply
    577,896.40x = 866,844.60 × 400,603.60
  4. Step 4: Simplify right side
    577,896.40x = 347,261,067,400.56
  5. Step 5: Solve for x
    x = 347,261,067,400.56/577,896.40
  6. Step 6: Final answer
    x = 600,905.40

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Similar ratio
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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.