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Finding the Fourth Proportional to 511,195.44, 705,253.53 and 307,295.96

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Solution

The fourth proportional to 511,195.44, 705,253.53 and 307,295.96 is: 423,950.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,195.44 : 705,253.53 = 307,295.96 : x
  2. Step 2: Convert to fraction form
    511,195.44/705,253.53 = 307,295.96/x
  3. Step 3: Cross multiply
    511,195.44x = 705,253.53 × 307,295.96
  4. Step 4: Simplify right side
    511,195.44x = 216,721,557,018.47
  5. Step 5: Solve for x
    x = 216,721,557,018.47/511,195.44
  6. Step 6: Final answer
    x = 423,950.49

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1.5x scale

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.