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Finding the Fourth Proportional to 352,465.71, 486,389.48 and 191,317.29

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Solution

The fourth proportional to 352,465.71, 486,389.48 and 191,317.29 is: 264,010.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,465.71 : 486,389.48 = 191,317.29 : x
  2. Step 2: Convert to fraction form
    352,465.71/486,389.48 = 191,317.29/x
  3. Step 3: Cross multiply
    352,465.71x = 486,389.48 × 191,317.29
  4. Step 4: Simplify right side
    352,465.71x = 93,054,716,241.52
  5. Step 5: Solve for x
    x = 93,054,716,241.52/352,465.71
  6. Step 6: Final answer
    x = 264,010.69

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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.