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Finding the Fourth Proportional to 398,646.88, 598,250.52 and 360,532.60

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Solution

The fourth proportional to 398,646.88, 598,250.52 and 360,532.60 is: 541,052.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,646.88 : 598,250.52 = 360,532.60 : x
  2. Step 2: Convert to fraction form
    398,646.88/598,250.52 = 360,532.60/x
  3. Step 3: Cross multiply
    398,646.88x = 598,250.52 × 360,532.60
  4. Step 4: Simplify right side
    398,646.88x = 215,688,813,931.33
  5. Step 5: Solve for x
    x = 215,688,813,931.33/398,646.88
  6. Step 6: Final answer
    x = 541,052.31

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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.