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Finding the Fourth Proportional to 536,641.85, 804,962.78 and 256,705.85

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Solution

The fourth proportional to 536,641.85, 804,962.78 and 256,705.85 is: 385,058.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,641.85 : 804,962.78 = 256,705.85 : x
  2. Step 2: Convert to fraction form
    536,641.85/804,962.78 = 256,705.85/x
  3. Step 3: Cross multiply
    536,641.85x = 804,962.78 × 256,705.85
  4. Step 4: Simplify right side
    536,641.85x = 206,638,654,658.26
  5. Step 5: Solve for x
    x = 206,638,654,658.26/536,641.85
  6. Step 6: Final answer
    x = 385,058.78

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.