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Finding the Fourth Proportional to 447,086.33, 616,927.43 and 256,088.33

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Solution

The fourth proportional to 447,086.33, 616,927.43 and 256,088.33 is: 353,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,086.33 : 616,927.43 = 256,088.33 : x
  2. Step 2: Convert to fraction form
    447,086.33/616,927.43 = 256,088.33/x
  3. Step 3: Cross multiply
    447,086.33x = 616,927.43 × 256,088.33
  4. Step 4: Simplify right side
    447,086.33x = 157,987,913,999.45
  5. Step 5: Solve for x
    x = 157,987,913,999.45/447,086.33
  6. Step 6: Final answer
    x = 353,372.28

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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.