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Finding the Fourth Proportional to 560,939.64, 774,096.66 and 306,291.03

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Solution

The fourth proportional to 560,939.64, 774,096.66 and 306,291.03 is: 422,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,939.64 : 774,096.66 = 306,291.03 : x
  2. Step 2: Convert to fraction form
    560,939.64/774,096.66 = 306,291.03/x
  3. Step 3: Cross multiply
    560,939.64x = 774,096.66 × 306,291.03
  4. Step 4: Simplify right side
    560,939.64x = 237,098,863,310.96
  5. Step 5: Solve for x
    x = 237,098,863,310.96/560,939.64
  6. Step 6: Final answer
    x = 422,681.60

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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.