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Finding the Fourth Proportional to 447,278.00, 616,393.31 and 319,732.16

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Solution

The fourth proportional to 447,278.00, 616,393.31 and 319,732.16 is: 440,622.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,278.00 : 616,393.31 = 319,732.16 : x
  2. Step 2: Convert to fraction form
    447,278.00/616,393.31 = 319,732.16/x
  3. Step 3: Cross multiply
    447,278.00x = 616,393.31 × 319,732.16
  4. Step 4: Simplify right side
    447,278.00x = 197,080,759,735.22
  5. Step 5: Solve for x
    x = 197,080,759,735.22/447,278.00
  6. Step 6: Final answer
    x = 440,622.53

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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.