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Finding the Fourth Proportional to 407,642.13, 562,562.33 and 235,554.39

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Solution

The fourth proportional to 407,642.13, 562,562.33 and 235,554.39 is: 325,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,642.13 : 562,562.33 = 235,554.39 : x
  2. Step 2: Convert to fraction form
    407,642.13/562,562.33 = 235,554.39/x
  3. Step 3: Cross multiply
    407,642.13x = 562,562.33 × 235,554.39
  4. Step 4: Simplify right side
    407,642.13x = 132,514,025,302.36
  5. Step 5: Solve for x
    x = 132,514,025,302.36/407,642.13
  6. Step 6: Final answer
    x = 325,074.41

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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.