Home / 926,391.30-1,389,716.55-393,908.10

Finding the Fourth Proportional to 926,391.30, 1,389,716.55 and 393,908.10

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Solution

The fourth proportional to 926,391.30, 1,389,716.55 and 393,908.10 is: 590,917.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,391.30 : 1,389,716.55 = 393,908.10 : x
  2. Step 2: Convert to fraction form
    926,391.30/1,389,716.55 = 393,908.10/x
  3. Step 3: Cross multiply
    926,391.30x = 1,389,716.55 × 393,908.10
  4. Step 4: Simplify right side
    926,391.30x = 547,420,605,749.06
  5. Step 5: Solve for x
    x = 547,420,605,749.06/926,391.30
  6. Step 6: Final answer
    x = 590,917.26

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Double scale
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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.