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Finding the Fourth Proportional to 555,696.12, 766,860.57 and 301,047.24

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Solution

The fourth proportional to 555,696.12, 766,860.57 and 301,047.24 is: 415,445.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,696.12 : 766,860.57 = 301,047.24 : x
  2. Step 2: Convert to fraction form
    555,696.12/766,860.57 = 301,047.24/x
  3. Step 3: Cross multiply
    555,696.12x = 766,860.57 × 301,047.24
  4. Step 4: Simplify right side
    555,696.12x = 230,861,258,063.33
  5. Step 5: Solve for x
    x = 230,861,258,063.33/555,696.12
  6. Step 6: Final answer
    x = 415,445.15

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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.