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Finding the Fourth Proportional to 352,438.23, 486,363.53 and 191,293.28

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Solution

The fourth proportional to 352,438.23, 486,363.53 and 191,293.28 is: 263,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,438.23 : 486,363.53 = 191,293.28 : x
  2. Step 2: Convert to fraction form
    352,438.23/486,363.53 = 191,293.28/x
  3. Step 3: Cross multiply
    352,438.23x = 486,363.53 × 191,293.28
  4. Step 4: Simplify right side
    352,438.23x = 93,038,071,537.79
  5. Step 5: Solve for x
    x = 93,038,071,537.79/352,438.23
  6. Step 6: Final answer
    x = 263,984.05

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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.