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Finding the Fourth Proportional to 536,625.40, 804,938.10 and 287,793.40

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Solution

The fourth proportional to 536,625.40, 804,938.10 and 287,793.40 is: 431,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,625.40 : 804,938.10 = 287,793.40 : x
  2. Step 2: Convert to fraction form
    536,625.40/804,938.10 = 287,793.40/x
  3. Step 3: Cross multiply
    536,625.40x = 804,938.10 × 287,793.40
  4. Step 4: Simplify right side
    536,625.40x = 231,655,872,588.54
  5. Step 5: Solve for x
    x = 231,655,872,588.54/536,625.40
  6. Step 6: Final answer
    x = 431,690.10

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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.