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Finding the Fourth Proportional to 670,540.88, 925,322.28 and 368,732.72

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Solution

The fourth proportional to 670,540.88, 925,322.28 and 368,732.72 is: 508,837.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,540.88 : 925,322.28 = 368,732.72 : x
  2. Step 2: Convert to fraction form
    670,540.88/925,322.28 = 368,732.72/x
  3. Step 3: Cross multiply
    670,540.88x = 925,322.28 × 368,732.72
  4. Step 4: Simplify right side
    670,540.88x = 341,196,601,181.00
  5. Step 5: Solve for x
    x = 341,196,601,181.00/670,540.88
  6. Step 6: Final answer
    x = 508,837.88

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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.