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Finding the Fourth Proportional to 487,684.67, 673,014.52 and 294,091.43

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Solution

The fourth proportional to 487,684.67, 673,014.52 and 294,091.43 is: 405,852.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,684.67 : 673,014.52 = 294,091.43 : x
  2. Step 2: Convert to fraction form
    487,684.67/673,014.52 = 294,091.43/x
  3. Step 3: Cross multiply
    487,684.67x = 673,014.52 × 294,091.43
  4. Step 4: Simplify right side
    487,684.67x = 197,927,799,600.11
  5. Step 5: Solve for x
    x = 197,927,799,600.11/487,684.67
  6. Step 6: Final answer
    x = 405,852.01

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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.