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Finding the Fourth Proportional to 587,072.40, 880,608.60 and 400,448.40

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Solution

The fourth proportional to 587,072.40, 880,608.60 and 400,448.40 is: 600,672.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,072.40 : 880,608.60 = 400,448.40 : x
  2. Step 2: Convert to fraction form
    587,072.40/880,608.60 = 400,448.40/x
  3. Step 3: Cross multiply
    587,072.40x = 880,608.60 × 400,448.40
  4. Step 4: Simplify right side
    587,072.40x = 352,638,304,896.24
  5. Step 5: Solve for x
    x = 352,638,304,896.24/587,072.40
  6. Step 6: Final answer
    x = 600,672.60

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Double scale
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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.