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Finding the Fourth Proportional to 352,842.69, 486,920.30 and 191,699.07

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Solution

The fourth proportional to 352,842.69, 486,920.30 and 191,699.07 is: 264,543.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,842.69 : 486,920.30 = 191,699.07 : x
  2. Step 2: Convert to fraction form
    352,842.69/486,920.30 = 191,699.07/x
  3. Step 3: Cross multiply
    352,842.69x = 486,920.30 × 191,699.07
  4. Step 4: Simplify right side
    352,842.69x = 93,342,165,889.67
  5. Step 5: Solve for x
    x = 93,342,165,889.67/352,842.69
  6. Step 6: Final answer
    x = 264,543.29

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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.