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Finding the Fourth Proportional to 487,220.40, 730,830.60 and 337,629.60

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Solution

The fourth proportional to 487,220.40, 730,830.60 and 337,629.60 is: 506,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,220.40 : 730,830.60 = 337,629.60 : x
  2. Step 2: Convert to fraction form
    487,220.40/730,830.60 = 337,629.60/x
  3. Step 3: Cross multiply
    487,220.40x = 730,830.60 × 337,629.60
  4. Step 4: Simplify right side
    487,220.40x = 246,750,043,145.76
  5. Step 5: Solve for x
    x = 246,750,043,145.76/487,220.40
  6. Step 6: Final answer
    x = 506,444.40

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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.