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Finding the Fourth Proportional to 476,930.86, 715,501.40 and 264,009.35

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Solution

The fourth proportional to 476,930.86, 715,501.40 and 264,009.35 is: 396,072.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,930.86 : 715,501.40 = 264,009.35 : x
  2. Step 2: Convert to fraction form
    476,930.86/715,501.40 = 264,009.35/x
  3. Step 3: Cross multiply
    476,930.86x = 715,501.40 × 264,009.35
  4. Step 4: Simplify right side
    476,930.86x = 188,899,060,006.80
  5. Step 5: Solve for x
    x = 188,899,060,006.80/476,930.86
  6. Step 6: Final answer
    x = 396,072.21

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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.