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Finding the Fourth Proportional to 451,699.86, 623,341.56 and 247,746.63

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Solution

The fourth proportional to 451,699.86, 623,341.56 and 247,746.63 is: 341,888.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,699.86 : 623,341.56 = 247,746.63 : x
  2. Step 2: Convert to fraction form
    451,699.86/623,341.56 = 247,746.63/x
  3. Step 3: Cross multiply
    451,699.86x = 623,341.56 × 247,746.63
  4. Step 4: Simplify right side
    451,699.86x = 154,430,770,828.94
  5. Step 5: Solve for x
    x = 154,430,770,828.94/451,699.86
  6. Step 6: Final answer
    x = 341,888.02

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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.