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Finding the Fourth Proportional to 668,607.62, 922,454.12 and 381,924.72

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Solution

The fourth proportional to 668,607.62, 922,454.12 and 381,924.72 is: 526,927.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,607.62 : 922,454.12 = 381,924.72 : x
  2. Step 2: Convert to fraction form
    668,607.62/922,454.12 = 381,924.72/x
  3. Step 3: Cross multiply
    668,607.62x = 922,454.12 × 381,924.72
  4. Step 4: Simplify right side
    668,607.62x = 352,308,032,448.66
  5. Step 5: Solve for x
    x = 352,308,032,448.66/668,607.62
  6. Step 6: Final answer
    x = 526,927.94

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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.