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Finding the Fourth Proportional to 551,182.08, 826,781.40 and 191,364.32

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Solution

The fourth proportional to 551,182.08, 826,781.40 and 191,364.32 is: 287,049.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,182.08 : 826,781.40 = 191,364.32 : x
  2. Step 2: Convert to fraction form
    551,182.08/826,781.40 = 191,364.32/x
  3. Step 3: Cross multiply
    551,182.08x = 826,781.40 × 191,364.32
  4. Step 4: Simplify right side
    551,182.08x = 158,216,460,399.65
  5. Step 5: Solve for x
    x = 158,216,460,399.65/551,182.08
  6. Step 6: Final answer
    x = 287,049.35

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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.