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Finding the Fourth Proportional to 670,320.64, 925,066.24 and 368,537.60

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Solution

The fourth proportional to 670,320.64, 925,066.24 and 368,537.60 is: 508,594.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,320.64 : 925,066.24 = 368,537.60 : x
  2. Step 2: Convert to fraction form
    670,320.64/925,066.24 = 368,537.60/x
  3. Step 3: Cross multiply
    670,320.64x = 925,066.24 × 368,537.60
  4. Step 4: Simplify right side
    670,320.64x = 340,921,691,930.62
  5. Step 5: Solve for x
    x = 340,921,691,930.62/670,320.64
  6. Step 6: Final answer
    x = 508,594.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.