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Finding the Fourth Proportional to 522,657.22, 721,223.40 and 293,182.60

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Solution

The fourth proportional to 522,657.22, 721,223.40 and 293,182.60 is: 404,567.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,657.22 : 721,223.40 = 293,182.60 : x
  2. Step 2: Convert to fraction form
    522,657.22/721,223.40 = 293,182.60/x
  3. Step 3: Cross multiply
    522,657.22x = 721,223.40 × 293,182.60
  4. Step 4: Simplify right side
    522,657.22x = 211,450,151,592.84
  5. Step 5: Solve for x
    x = 211,450,151,592.84/522,657.22
  6. Step 6: Final answer
    x = 404,567.55

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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.