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Finding the Fourth Proportional to 461,166.60, 636,313.14 and 279,973.92

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Solution

The fourth proportional to 461,166.60, 636,313.14 and 279,973.92 is: 386,305.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,166.60 : 636,313.14 = 279,973.92 : x
  2. Step 2: Convert to fraction form
    461,166.60/636,313.14 = 279,973.92/x
  3. Step 3: Cross multiply
    461,166.60x = 636,313.14 × 279,973.92
  4. Step 4: Simplify right side
    461,166.60x = 178,151,084,153.31
  5. Step 5: Solve for x
    x = 178,151,084,153.31/461,166.60
  6. Step 6: Final answer
    x = 386,305.26

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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.