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Finding the Fourth Proportional to 623,953.92, 860,982.33 and 352,005.93

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Solution

The fourth proportional to 623,953.92, 860,982.33 and 352,005.93 is: 485,726.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,953.92 : 860,982.33 = 352,005.93 : x
  2. Step 2: Convert to fraction form
    623,953.92/860,982.33 = 352,005.93/x
  3. Step 3: Cross multiply
    623,953.92x = 860,982.33 × 352,005.93
  4. Step 4: Simplify right side
    623,953.92x = 303,070,885,785.22
  5. Step 5: Solve for x
    x = 303,070,885,785.22/623,953.92
  6. Step 6: Final answer
    x = 485,726.39

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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.