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Finding the Fourth Proportional to 555,611.44, 766,698.30 and 313,915

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Solution

The fourth proportional to 555,611.44, 766,698.30 and 313,915 is: 433,177.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,611.44 : 766,698.30 = 313,915 : x
  2. Step 2: Convert to fraction form
    555,611.44/766,698.30 = 313,915/x
  3. Step 3: Cross multiply
    555,611.44x = 766,698.30 × 313,915
  4. Step 4: Simplify right side
    555,611.44x = 240,678,096,844.50
  5. Step 5: Solve for x
    x = 240,678,096,844.50/555,611.44
  6. Step 6: Final answer
    x = 433,177.00

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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.