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Finding the Fourth Proportional to 476,657.79, 715,396.73 and 276,700.38

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Solution

The fourth proportional to 476,657.79, 715,396.73 and 276,700.38 is: 415,288.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,657.79 : 715,396.73 = 276,700.38 : x
  2. Step 2: Convert to fraction form
    476,657.79/715,396.73 = 276,700.38/x
  3. Step 3: Cross multiply
    476,657.79x = 715,396.73 × 276,700.38
  4. Step 4: Simplify right side
    476,657.79x = 197,950,545,658.26
  5. Step 5: Solve for x
    x = 197,950,545,658.26/476,657.79
  6. Step 6: Final answer
    x = 415,288.60

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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.