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Finding the Fourth Proportional to 446,915.66, 616,755.78 and 242,980.31

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Solution

The fourth proportional to 446,915.66, 616,755.78 and 242,980.31 is: 335,319.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,915.66 : 616,755.78 = 242,980.31 : x
  2. Step 2: Convert to fraction form
    446,915.66/616,755.78 = 242,980.31/x
  3. Step 3: Cross multiply
    446,915.66x = 616,755.78 × 242,980.31
  4. Step 4: Simplify right side
    446,915.66x = 149,859,507,534.91
  5. Step 5: Solve for x
    x = 149,859,507,534.91/446,915.66
  6. Step 6: Final answer
    x = 335,319.44

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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.