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Finding the Fourth Proportional to 412,844.40, 619,266.60 and 360,356.40

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Solution

The fourth proportional to 412,844.40, 619,266.60 and 360,356.40 is: 540,534.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,844.40 : 619,266.60 = 360,356.40 : x
  2. Step 2: Convert to fraction form
    412,844.40/619,266.60 = 360,356.40/x
  3. Step 3: Cross multiply
    412,844.40x = 619,266.60 × 360,356.40
  4. Step 4: Simplify right side
    412,844.40x = 223,156,682,616.24
  5. Step 5: Solve for x
    x = 223,156,682,616.24/412,844.40
  6. Step 6: Final answer
    x = 540,534.60

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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.