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Finding the Fourth Proportional to 472,885.68, 651,819.72 and 319,867.98

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Solution

The fourth proportional to 472,885.68, 651,819.72 and 319,867.98 is: 440,902.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,885.68 : 651,819.72 = 319,867.98 : x
  2. Step 2: Convert to fraction form
    472,885.68/651,819.72 = 319,867.98/x
  3. Step 3: Cross multiply
    472,885.68x = 651,819.72 × 319,867.98
  4. Step 4: Simplify right side
    472,885.68x = 208,496,257,160.57
  5. Step 5: Solve for x
    x = 208,496,257,160.57/472,885.68
  6. Step 6: Final answer
    x = 440,902.03

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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.