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Finding the Fourth Proportional to 472,237.96, 651,679.86 and 257,376.52

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Solution

The fourth proportional to 472,237.96, 651,679.86 and 257,376.52 is: 355,174.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,237.96 : 651,679.86 = 257,376.52 : x
  2. Step 2: Convert to fraction form
    472,237.96/651,679.86 = 257,376.52/x
  3. Step 3: Cross multiply
    472,237.96x = 651,679.86 × 257,376.52
  4. Step 4: Simplify right side
    472,237.96x = 167,727,094,520.89
  5. Step 5: Solve for x
    x = 167,727,094,520.89/472,237.96
  6. Step 6: Final answer
    x = 355,174.95

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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.