Home / 439,911.18-607,090.88-258,589.84

Finding the Fourth Proportional to 439,911.18, 607,090.88 and 258,589.84

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Solution

The fourth proportional to 439,911.18, 607,090.88 and 258,589.84 is: 356,861.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,911.18 : 607,090.88 = 258,589.84 : x
  2. Step 2: Convert to fraction form
    439,911.18/607,090.88 = 258,589.84/x
  3. Step 3: Cross multiply
    439,911.18x = 607,090.88 × 258,589.84
  4. Step 4: Simplify right side
    439,911.18x = 156,987,533,524.66
  5. Step 5: Solve for x
    x = 156,987,533,524.66/439,911.18
  6. Step 6: Final answer
    x = 356,861.89

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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.