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Finding the Fourth Proportional to 668,334.30, 922,350.21 and 381,848.25

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Solution

The fourth proportional to 668,334.30, 922,350.21 and 381,848.25 is: 526,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,334.30 : 922,350.21 = 381,848.25 : x
  2. Step 2: Convert to fraction form
    668,334.30/922,350.21 = 381,848.25/x
  3. Step 3: Cross multiply
    668,334.30x = 922,350.21 × 381,848.25
  4. Step 4: Simplify right side
    668,334.30x = 352,197,813,575.63
  5. Step 5: Solve for x
    x = 352,197,813,575.63/668,334.30
  6. Step 6: Final answer
    x = 526,978.51

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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.