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Finding the Fourth Proportional to 517,524.67, 714,176.72 and 291,169.63

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Solution

The fourth proportional to 517,524.67, 714,176.72 and 291,169.63 is: 401,809.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,524.67 : 714,176.72 = 291,169.63 : x
  2. Step 2: Convert to fraction form
    517,524.67/714,176.72 = 291,169.63/x
  3. Step 3: Cross multiply
    517,524.67x = 714,176.72 × 291,169.63
  4. Step 4: Simplify right side
    517,524.67x = 207,946,567,746.13
  5. Step 5: Solve for x
    x = 207,946,567,746.13/517,524.67
  6. Step 6: Final answer
    x = 401,809.97

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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.