Home / 689,985.90-952,191.31-384,065.61

Finding the Fourth Proportional to 689,985.90, 952,191.31 and 384,065.61

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Solution

The fourth proportional to 689,985.90, 952,191.31 and 384,065.61 is: 530,016.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,985.90 : 952,191.31 = 384,065.61 : x
  2. Step 2: Convert to fraction form
    689,985.90/952,191.31 = 384,065.61/x
  3. Step 3: Cross multiply
    689,985.90x = 952,191.31 × 384,065.61
  4. Step 4: Simplify right side
    689,985.90x = 365,703,936,311.85
  5. Step 5: Solve for x
    x = 365,703,936,311.85/689,985.90
  6. Step 6: Final answer
    x = 530,016.54

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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.