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Finding the Fourth Proportional to 447,057.12, 616,955.03 and 256,107.42

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Solution

The fourth proportional to 447,057.12, 616,955.03 and 256,107.42 is: 353,437.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,057.12 : 616,955.03 = 256,107.42 : x
  2. Step 2: Convert to fraction form
    447,057.12/616,955.03 = 256,107.42/x
  3. Step 3: Cross multiply
    447,057.12x = 616,955.03 × 256,107.42
  4. Step 4: Simplify right side
    447,057.12x = 158,006,759,708.79
  5. Step 5: Solve for x
    x = 158,006,759,708.79/447,057.12
  6. Step 6: Final answer
    x = 353,437.52

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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.