Home / 890,184.15-1,228,454.82-522,589.34

Finding the Fourth Proportional to 890,184.15, 1,228,454.82 and 522,589.34

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Solution

The fourth proportional to 890,184.15, 1,228,454.82 and 522,589.34 is: 721,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,184.15 : 1,228,454.82 = 522,589.34 : x
  2. Step 2: Convert to fraction form
    890,184.15/1,228,454.82 = 522,589.34/x
  3. Step 3: Cross multiply
    890,184.15x = 1,228,454.82 × 522,589.34
  4. Step 4: Simplify right side
    890,184.15x = 641,977,387,461.35
  5. Step 5: Solve for x
    x = 641,977,387,461.35/890,184.15
  6. Step 6: Final answer
    x = 721,173.69

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Double scale
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Similar ratio
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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.