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Finding the Fourth Proportional to 555,712.22, 766,883.63 and 301,063.40

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Solution

The fourth proportional to 555,712.22, 766,883.63 and 301,063.40 is: 415,467.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,712.22 : 766,883.63 = 301,063.40 : x
  2. Step 2: Convert to fraction form
    555,712.22/766,883.63 = 301,063.40/x
  3. Step 3: Cross multiply
    555,712.22x = 766,883.63 × 301,063.40
  4. Step 4: Simplify right side
    555,712.22x = 230,880,587,712.41
  5. Step 5: Solve for x
    x = 230,880,587,712.41/555,712.22
  6. Step 6: Final answer
    x = 415,467.90

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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.