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Finding the Fourth Proportional to 617,969.20, 926,953.80 and 197,287.60

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Solution

The fourth proportional to 617,969.20, 926,953.80 and 197,287.60 is: 295,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,969.20 : 926,953.80 = 197,287.60 : x
  2. Step 2: Convert to fraction form
    617,969.20/926,953.80 = 197,287.60/x
  3. Step 3: Cross multiply
    617,969.20x = 926,953.80 × 197,287.60
  4. Step 4: Simplify right side
    617,969.20x = 182,876,490,512.88
  5. Step 5: Solve for x
    x = 182,876,490,512.88/617,969.20
  6. Step 6: Final answer
    x = 295,931.40

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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.