Home / 617,452.36-851,267.46-445,226.20

Finding the Fourth Proportional to 617,452.36, 851,267.46 and 445,226.20

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Solution

The fourth proportional to 617,452.36, 851,267.46 and 445,226.20 is: 613,823.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,452.36 : 851,267.46 = 445,226.20 : x
  2. Step 2: Convert to fraction form
    617,452.36/851,267.46 = 445,226.20/x
  3. Step 3: Cross multiply
    617,452.36x = 851,267.46 × 445,226.20
  4. Step 4: Simplify right side
    617,452.36x = 379,006,576,399.45
  5. Step 5: Solve for x
    x = 379,006,576,399.45/617,452.36
  6. Step 6: Final answer
    x = 613,823.19

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.