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Finding the Fourth Proportional to 961,407.72, 1,442,001.42 and 251,504.28

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Solution

The fourth proportional to 961,407.72, 1,442,001.42 and 251,504.28 is: 377,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,407.72 : 1,442,001.42 = 251,504.28 : x
  2. Step 2: Convert to fraction form
    961,407.72/1,442,001.42 = 251,504.28/x
  3. Step 3: Cross multiply
    961,407.72x = 1,442,001.42 × 251,504.28
  4. Step 4: Simplify right side
    961,407.72x = 362,669,528,896.08
  5. Step 5: Solve for x
    x = 362,669,528,896.08/961,407.72
  6. Step 6: Final answer
    x = 377,227.60

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Double scale
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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.