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Finding the Fourth Proportional to 777,971.44, 1,073,686.44 and 451,356.40

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Solution

The fourth proportional to 777,971.44, 1,073,686.44 and 451,356.40 is: 622,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,971.44 : 1,073,686.44 = 451,356.40 : x
  2. Step 2: Convert to fraction form
    777,971.44/1,073,686.44 = 451,356.40/x
  3. Step 3: Cross multiply
    777,971.44x = 1,073,686.44 × 451,356.40
  4. Step 4: Simplify right side
    777,971.44x = 484,615,246,287.22
  5. Step 5: Solve for x
    x = 484,615,246,287.22/777,971.44
  6. Step 6: Final answer
    x = 622,921.64

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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.