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Finding the Fourth Proportional to 469,925.15, 648,790.32 and 323,002.95

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Solution

The fourth proportional to 469,925.15, 648,790.32 and 323,002.95 is: 445,945.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,925.15 : 648,790.32 = 323,002.95 : x
  2. Step 2: Convert to fraction form
    469,925.15/648,790.32 = 323,002.95/x
  3. Step 3: Cross multiply
    469,925.15x = 648,790.32 × 323,002.95
  4. Step 4: Simplify right side
    469,925.15x = 209,561,187,291.44
  5. Step 5: Solve for x
    x = 209,561,187,291.44/469,925.15
  6. Step 6: Final answer
    x = 445,945.89

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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.