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Finding the Fourth Proportional to 560,908.48, 774,047.84 and 306,258.88

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Solution

The fourth proportional to 560,908.48, 774,047.84 and 306,258.88 is: 422,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,908.48 : 774,047.84 = 306,258.88 : x
  2. Step 2: Convert to fraction form
    560,908.48/774,047.84 = 306,258.88/x
  3. Step 3: Cross multiply
    560,908.48x = 774,047.84 × 306,258.88
  4. Step 4: Simplify right side
    560,908.48x = 237,059,024,544.82
  5. Step 5: Solve for x
    x = 237,059,024,544.82/560,908.48
  6. Step 6: Final answer
    x = 422,634.05

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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.