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Finding the Fourth Proportional to 444,283.75, 612,473.89 and 316,737.91

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Solution

The fourth proportional to 444,283.75, 612,473.89 and 316,737.91 is: 436,643.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,283.75 : 612,473.89 = 316,737.91 : x
  2. Step 2: Convert to fraction form
    444,283.75/612,473.89 = 316,737.91/x
  3. Step 3: Cross multiply
    444,283.75x = 612,473.89 × 316,737.91
  4. Step 4: Simplify right side
    444,283.75x = 193,993,695,202.11
  5. Step 5: Solve for x
    x = 193,993,695,202.11/444,283.75
  6. Step 6: Final answer
    x = 436,643.69

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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.