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Finding the Fourth Proportional to 576,914.40, 865,371.60 and 156,189.60

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Solution

The fourth proportional to 576,914.40, 865,371.60 and 156,189.60 is: 234,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,914.40 : 865,371.60 = 156,189.60 : x
  2. Step 2: Convert to fraction form
    576,914.40/865,371.60 = 156,189.60/x
  3. Step 3: Cross multiply
    576,914.40x = 865,371.60 × 156,189.60
  4. Step 4: Simplify right side
    576,914.40x = 135,162,044,055.36
  5. Step 5: Solve for x
    x = 135,162,044,055.36/576,914.40
  6. Step 6: Final answer
    x = 234,284.40

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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.