Home / 785,071.56-1,083,454.74-445,561.68

Finding the Fourth Proportional to 785,071.56, 1,083,454.74 and 445,561.68

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Solution

The fourth proportional to 785,071.56, 1,083,454.74 and 445,561.68 is: 614,906.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,071.56 : 1,083,454.74 = 445,561.68 : x
  2. Step 2: Convert to fraction form
    785,071.56/1,083,454.74 = 445,561.68/x
  3. Step 3: Cross multiply
    785,071.56x = 1,083,454.74 × 445,561.68
  4. Step 4: Simplify right side
    785,071.56x = 482,745,914,158.36
  5. Step 5: Solve for x
    x = 482,745,914,158.36/785,071.56
  6. Step 6: Final answer
    x = 614,906.89

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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.