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Finding the Fourth Proportional to 519,816.88, 779,097.40 and 253,177.84

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Solution

The fourth proportional to 519,816.88, 779,097.40 and 253,177.84 is: 379,460.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,816.88 : 779,097.40 = 253,177.84 : x
  2. Step 2: Convert to fraction form
    519,816.88/779,097.40 = 253,177.84/x
  3. Step 3: Cross multiply
    519,816.88x = 779,097.40 × 253,177.84
  4. Step 4: Simplify right side
    519,816.88x = 197,250,196,881.62
  5. Step 5: Solve for x
    x = 197,250,196,881.62/519,816.88
  6. Step 6: Final answer
    x = 379,460.93

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1.5x scale

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.