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Finding the Fourth Proportional to 423,821.61, 584,906.63 and 242,590.41

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Solution

The fourth proportional to 423,821.61, 584,906.63 and 242,590.41 is: 334,793.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,821.61 : 584,906.63 = 242,590.41 : x
  2. Step 2: Convert to fraction form
    423,821.61/584,906.63 = 242,590.41/x
  3. Step 3: Cross multiply
    423,821.61x = 584,906.63 × 242,590.41
  4. Step 4: Simplify right side
    423,821.61x = 141,892,737,970.47
  5. Step 5: Solve for x
    x = 141,892,737,970.47/423,821.61
  6. Step 6: Final answer
    x = 334,793.54

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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.