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Finding the Fourth Proportional to 519,148.82, 778,848.54 and 194,939.56

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Solution

The fourth proportional to 519,148.82, 778,848.54 and 194,939.56 is: 292,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,148.82 : 778,848.54 = 194,939.56 : x
  2. Step 2: Convert to fraction form
    519,148.82/778,848.54 = 194,939.56/x
  3. Step 3: Cross multiply
    519,148.82x = 778,848.54 × 194,939.56
  4. Step 4: Simplify right side
    519,148.82x = 151,828,391,694.24
  5. Step 5: Solve for x
    x = 151,828,391,694.24/519,148.82
  6. Step 6: Final answer
    x = 292,456.39

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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.