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Finding the Fourth Proportional to 638,699.19, 958,104.12 and 234,001.32

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Solution

The fourth proportional to 638,699.19, 958,104.12 and 234,001.32 is: 351,022.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,699.19 : 958,104.12 = 234,001.32 : x
  2. Step 2: Convert to fraction form
    638,699.19/958,104.12 = 234,001.32/x
  3. Step 3: Cross multiply
    638,699.19x = 958,104.12 × 234,001.32
  4. Step 4: Simplify right side
    638,699.19x = 224,197,628,777.44
  5. Step 5: Solve for x
    x = 224,197,628,777.44/638,699.19
  6. Step 6: Final answer
    x = 351,022.25

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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.