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Finding the Fourth Proportional to 472,230.86, 651,674.48 and 257,370.89

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Solution

The fourth proportional to 472,230.86, 651,674.48 and 257,370.89 is: 355,169.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,230.86 : 651,674.48 = 257,370.89 : x
  2. Step 2: Convert to fraction form
    472,230.86/651,674.48 = 257,370.89/x
  3. Step 3: Cross multiply
    472,230.86x = 651,674.48 × 257,370.89
  4. Step 4: Simplify right side
    472,230.86x = 167,722,036,362.66
  5. Step 5: Solve for x
    x = 167,722,036,362.66/472,230.86
  6. Step 6: Final answer
    x = 355,169.58

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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.