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Finding the Fourth Proportional to 407,641.26, 562,561.12 and 235,553.52

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Solution

The fourth proportional to 407,641.26, 562,561.12 and 235,553.52 is: 325,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,641.26 : 562,561.12 = 235,553.52 : x
  2. Step 2: Convert to fraction form
    407,641.26/562,561.12 = 235,553.52/x
  3. Step 3: Cross multiply
    407,641.26x = 562,561.12 × 235,553.52
  4. Step 4: Simplify right side
    407,641.26x = 132,513,248,629.45
  5. Step 5: Solve for x
    x = 132,513,248,629.45/407,641.26
  6. Step 6: Final answer
    x = 325,073.20

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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.