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Finding the Fourth Proportional to 468,765.72, 646,896.88 and 253,905.12

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Solution

The fourth proportional to 468,765.72, 646,896.88 and 253,905.12 is: 350,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,765.72 : 646,896.88 = 253,905.12 : x
  2. Step 2: Convert to fraction form
    468,765.72/646,896.88 = 253,905.12/x
  3. Step 3: Cross multiply
    468,765.72x = 646,896.88 × 253,905.12
  4. Step 4: Simplify right side
    468,765.72x = 164,250,427,057.26
  5. Step 5: Solve for x
    x = 164,250,427,057.26/468,765.72
  6. Step 6: Final answer
    x = 350,389.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.