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Finding the Fourth Proportional to 447,058.52, 616,915.82 and 256,084.21

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Solution

The fourth proportional to 447,058.52, 616,915.82 and 256,084.21 is: 353,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,058.52 : 616,915.82 = 256,084.21 : x
  2. Step 2: Convert to fraction form
    447,058.52/616,915.82 = 256,084.21/x
  3. Step 3: Cross multiply
    447,058.52x = 616,915.82 × 256,084.21
  4. Step 4: Simplify right side
    447,058.52x = 157,982,400,401.20
  5. Step 5: Solve for x
    x = 157,982,400,401.20/447,058.52
  6. Step 6: Final answer
    x = 353,381.93

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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.