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Finding the Fourth Proportional to 560,938.32, 774,091.80 and 306,287.70

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Solution

The fourth proportional to 560,938.32, 774,091.80 and 306,287.70 is: 422,675.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,938.32 : 774,091.80 = 306,287.70 : x
  2. Step 2: Convert to fraction form
    560,938.32/774,091.80 = 306,287.70/x
  3. Step 3: Cross multiply
    560,938.32x = 774,091.80 × 306,287.70
  4. Step 4: Simplify right side
    560,938.32x = 237,094,797,010.86
  5. Step 5: Solve for x
    x = 237,094,797,010.86/560,938.32
  6. Step 6: Final answer
    x = 422,675.34

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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.