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Finding the Fourth Proportional to 505,551.44, 697,665.76 and 287,749.49

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Solution

The fourth proportional to 505,551.44, 697,665.76 and 287,749.49 is: 397,097.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,551.44 : 697,665.76 = 287,749.49 : x
  2. Step 2: Convert to fraction form
    505,551.44/697,665.76 = 287,749.49/x
  3. Step 3: Cross multiply
    505,551.44x = 697,665.76 × 287,749.49
  4. Step 4: Simplify right side
    505,551.44x = 200,752,962,422.76
  5. Step 5: Solve for x
    x = 200,752,962,422.76/505,551.44
  6. Step 6: Final answer
    x = 397,097.00

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1.5x scale

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.