Home / 683,141.80-1,024,712.70-328,070.20

Finding the Fourth Proportional to 683,141.80, 1,024,712.70 and 328,070.20

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Solution

The fourth proportional to 683,141.80, 1,024,712.70 and 328,070.20 is: 492,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,141.80 : 1,024,712.70 = 328,070.20 : x
  2. Step 2: Convert to fraction form
    683,141.80/1,024,712.70 = 328,070.20/x
  3. Step 3: Cross multiply
    683,141.80x = 1,024,712.70 × 328,070.20
  4. Step 4: Simplify right side
    683,141.80x = 336,177,700,431.54
  5. Step 5: Solve for x
    x = 336,177,700,431.54/683,141.80
  6. Step 6: Final answer
    x = 492,105.30

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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.