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Finding the Fourth Proportional to 530,778.90, 732,625.41 and 349,623.06

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Solution

The fourth proportional to 530,778.90, 732,625.41 and 349,623.06 is: 482,578.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,778.90 : 732,625.41 = 349,623.06 : x
  2. Step 2: Convert to fraction form
    530,778.90/732,625.41 = 349,623.06/x
  3. Step 3: Cross multiply
    530,778.90x = 732,625.41 × 349,623.06
  4. Step 4: Simplify right side
    530,778.90x = 256,142,737,677.96
  5. Step 5: Solve for x
    x = 256,142,737,677.96/530,778.90
  6. Step 6: Final answer
    x = 482,578.98

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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.