Home / 746,179.16-1,029,697.20-406,640.12

Finding the Fourth Proportional to 746,179.16, 1,029,697.20 and 406,640.12

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Solution

The fourth proportional to 746,179.16, 1,029,697.20 and 406,640.12 is: 561,146.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,179.16 : 1,029,697.20 = 406,640.12 : x
  2. Step 2: Convert to fraction form
    746,179.16/1,029,697.20 = 406,640.12/x
  3. Step 3: Cross multiply
    746,179.16x = 1,029,697.20 × 406,640.12
  4. Step 4: Simplify right side
    746,179.16x = 418,716,192,971.66
  5. Step 5: Solve for x
    x = 418,716,192,971.66/746,179.16
  6. Step 6: Final answer
    x = 561,146.99

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Double scale
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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.