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Finding the Fourth Proportional to 607,201.60, 909,344.40 and 326,099.20

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Solution

The fourth proportional to 607,201.60, 909,344.40 and 326,099.20 is: 488,365.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,201.60 : 909,344.40 = 326,099.20 : x
  2. Step 2: Convert to fraction form
    607,201.60/909,344.40 = 326,099.20/x
  3. Step 3: Cross multiply
    607,201.60x = 909,344.40 × 326,099.20
  4. Step 4: Simplify right side
    607,201.60x = 296,536,481,364.48
  5. Step 5: Solve for x
    x = 296,536,481,364.48/607,201.60
  6. Step 6: Final answer
    x = 488,365.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.