Home / 691,982.39-954,914.04-405,693.15

Finding the Fourth Proportional to 691,982.39, 954,914.04 and 405,693.15

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Solution

The fourth proportional to 691,982.39, 954,914.04 and 405,693.15 is: 559,843.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,982.39 : 954,914.04 = 405,693.15 : x
  2. Step 2: Convert to fraction form
    691,982.39/954,914.04 = 405,693.15/x
  3. Step 3: Cross multiply
    691,982.39x = 954,914.04 × 405,693.15
  4. Step 4: Simplify right side
    691,982.39x = 387,402,084,866.83
  5. Step 5: Solve for x
    x = 387,402,084,866.83/691,982.39
  6. Step 6: Final answer
    x = 559,843.85

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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.