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Finding the Fourth Proportional to 635,509.15, 952,972.70 and 379,457.96

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Solution

The fourth proportional to 635,509.15, 952,972.70 and 379,457.96 is: 569,013.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,509.15 : 952,972.70 = 379,457.96 : x
  2. Step 2: Convert to fraction form
    635,509.15/952,972.70 = 379,457.96/x
  3. Step 3: Cross multiply
    635,509.15x = 952,972.70 × 379,457.96
  4. Step 4: Simplify right side
    635,509.15x = 361,613,070,015.54
  5. Step 5: Solve for x
    x = 361,613,070,015.54/635,509.15
  6. Step 6: Final answer
    x = 569,013.16

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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.