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Finding the Fourth Proportional to 352,627.56, 486,569.16 and 216,617.76

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Solution

The fourth proportional to 352,627.56, 486,569.16 and 216,617.76 is: 298,897.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,627.56 : 486,569.16 = 216,617.76 : x
  2. Step 2: Convert to fraction form
    352,627.56/486,569.16 = 216,617.76/x
  3. Step 3: Cross multiply
    352,627.56x = 486,569.16 × 216,617.76
  4. Step 4: Simplify right side
    352,627.56x = 105,399,521,524.28
  5. Step 5: Solve for x
    x = 105,399,521,524.28/352,627.56
  6. Step 6: Final answer
    x = 298,897.57

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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.