Home / 522,094.20-783,141.30-312,142.20

Finding the Fourth Proportional to 522,094.20, 783,141.30 and 312,142.20

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Solution

The fourth proportional to 522,094.20, 783,141.30 and 312,142.20 is: 468,213.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,094.20 : 783,141.30 = 312,142.20 : x
  2. Step 2: Convert to fraction form
    522,094.20/783,141.30 = 312,142.20/x
  3. Step 3: Cross multiply
    522,094.20x = 783,141.30 × 312,142.20
  4. Step 4: Simplify right side
    522,094.20x = 244,451,448,292.86
  5. Step 5: Solve for x
    x = 244,451,448,292.86/522,094.20
  6. Step 6: Final answer
    x = 468,213.30

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Half scale
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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.