Home / 617,814.20-926,721.30-368,982.20

Finding the Fourth Proportional to 617,814.20, 926,721.30 and 368,982.20

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Solution

The fourth proportional to 617,814.20, 926,721.30 and 368,982.20 is: 553,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,814.20 : 926,721.30 = 368,982.20 : x
  2. Step 2: Convert to fraction form
    617,814.20/926,721.30 = 368,982.20/x
  3. Step 3: Cross multiply
    617,814.20x = 926,721.30 × 368,982.20
  4. Step 4: Simplify right side
    617,814.20x = 341,943,664,060.86
  5. Step 5: Solve for x
    x = 341,943,664,060.86/617,814.20
  6. Step 6: Final answer
    x = 553,473.30

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.