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Finding the Fourth Proportional to 399,074.40, 598,611.60 and 233,186.40

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Solution

The fourth proportional to 399,074.40, 598,611.60 and 233,186.40 is: 349,779.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,074.40 : 598,611.60 = 233,186.40 : x
  2. Step 2: Convert to fraction form
    399,074.40/598,611.60 = 233,186.40/x
  3. Step 3: Cross multiply
    399,074.40x = 598,611.60 × 233,186.40
  4. Step 4: Simplify right side
    399,074.40x = 139,588,084,002.24
  5. Step 5: Solve for x
    x = 139,588,084,002.24/399,074.40
  6. Step 6: Final answer
    x = 349,779.60

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Similar ratio
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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.