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Finding the Fourth Proportional to 425,276.20, 637,258.20 and 368,851.60

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Solution

The fourth proportional to 425,276.20, 637,258.20 and 368,851.60 is: 552,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,276.20 : 637,258.20 = 368,851.60 : x
  2. Step 2: Convert to fraction form
    425,276.20/637,258.20 = 368,851.60/x
  3. Step 3: Cross multiply
    425,276.20x = 637,258.20 × 368,851.60
  4. Step 4: Simplify right side
    425,276.20x = 235,053,706,683.12
  5. Step 5: Solve for x
    x = 235,053,706,683.12/425,276.20
  6. Step 6: Final answer
    x = 552,708.35

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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.