Home / 821,806.36-1,134,071.06-459,233.20

Finding the Fourth Proportional to 821,806.36, 1,134,071.06 and 459,233.20

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Solution

The fourth proportional to 821,806.36, 1,134,071.06 and 459,233.20 is: 633,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,806.36 : 1,134,071.06 = 459,233.20 : x
  2. Step 2: Convert to fraction form
    821,806.36/1,134,071.06 = 459,233.20/x
  3. Step 3: Cross multiply
    821,806.36x = 1,134,071.06 × 459,233.20
  4. Step 4: Simplify right side
    821,806.36x = 520,803,081,911.19
  5. Step 5: Solve for x
    x = 520,803,081,911.19/821,806.36
  6. Step 6: Final answer
    x = 633,729.68

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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.