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Finding the Fourth Proportional to 510,915.25, 766,393.90 and 191,034.75

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Solution

The fourth proportional to 510,915.25, 766,393.90 and 191,034.75 is: 286,560.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,915.25 : 766,393.90 = 191,034.75 : x
  2. Step 2: Convert to fraction form
    510,915.25/766,393.90 = 191,034.75/x
  3. Step 3: Cross multiply
    510,915.25x = 766,393.90 × 191,034.75
  4. Step 4: Simplify right side
    510,915.25x = 146,407,870,558.99
  5. Step 5: Solve for x
    x = 146,407,870,558.99/510,915.25
  6. Step 6: Final answer
    x = 286,560.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.