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Finding the Fourth Proportional to 557,843.16, 769,829.58 and 303,194.40

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Solution

The fourth proportional to 557,843.16, 769,829.58 and 303,194.40 is: 418,411.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,843.16 : 769,829.58 = 303,194.40 : x
  2. Step 2: Convert to fraction form
    557,843.16/769,829.58 = 303,194.40/x
  3. Step 3: Cross multiply
    557,843.16x = 769,829.58 × 303,194.40
  4. Step 4: Simplify right side
    557,843.16x = 233,408,017,610.35
  5. Step 5: Solve for x
    x = 233,408,017,610.35/557,843.16
  6. Step 6: Final answer
    x = 418,411.54

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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.