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Finding the Fourth Proportional to 555,963.60, 767,312.26 and 352,033.54

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Solution

The fourth proportional to 555,963.60, 767,312.26 and 352,033.54 is: 485,858.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,963.60 : 767,312.26 = 352,033.54 : x
  2. Step 2: Convert to fraction form
    555,963.60/767,312.26 = 352,033.54/x
  3. Step 3: Cross multiply
    555,963.60x = 767,312.26 × 352,033.54
  4. Step 4: Simplify right side
    555,963.60x = 270,119,651,173.20
  5. Step 5: Solve for x
    x = 270,119,651,173.20/555,963.60
  6. Step 6: Final answer
    x = 485,858.52

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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.