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Finding the Fourth Proportional to 511,663.77, 767,497.52 and 156,676.35

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Solution

The fourth proportional to 511,663.77, 767,497.52 and 156,676.35 is: 235,015.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,663.77 : 767,497.52 = 156,676.35 : x
  2. Step 2: Convert to fraction form
    511,663.77/767,497.52 = 156,676.35/x
  3. Step 3: Cross multiply
    511,663.77x = 767,497.52 × 156,676.35
  4. Step 4: Simplify right side
    511,663.77x = 120,248,710,067.65
  5. Step 5: Solve for x
    x = 120,248,710,067.65/511,663.77
  6. Step 6: Final answer
    x = 235,015.10

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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.