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Finding the Fourth Proportional to 668,334.64, 922,216.56 and 381,873.28

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Solution

The fourth proportional to 668,334.64, 922,216.56 and 381,873.28 is: 526,936.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,334.64 : 922,216.56 = 381,873.28 : x
  2. Step 2: Convert to fraction form
    668,334.64/922,216.56 = 381,873.28/x
  3. Step 3: Cross multiply
    668,334.64x = 922,216.56 × 381,873.28
  4. Step 4: Simplify right side
    668,334.64x = 352,169,862,637.52
  5. Step 5: Solve for x
    x = 352,169,862,637.52/668,334.64
  6. Step 6: Final answer
    x = 526,936.42

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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.