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Finding the Fourth Proportional to 682,455.60, 941,791.98 and 376,531.92

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Solution

The fourth proportional to 682,455.60, 941,791.98 and 376,531.92 is: 519,615.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,455.60 : 941,791.98 = 376,531.92 : x
  2. Step 2: Convert to fraction form
    682,455.60/941,791.98 = 376,531.92/x
  3. Step 3: Cross multiply
    682,455.60x = 941,791.98 × 376,531.92
  4. Step 4: Simplify right side
    682,455.60x = 354,614,742,470.00
  5. Step 5: Solve for x
    x = 354,614,742,470.00/682,455.60
  6. Step 6: Final answer
    x = 519,615.84

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1.5x scale

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.