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Finding the Fourth Proportional to 283,356.75, 391,032.32 and 156,032.04

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Solution

The fourth proportional to 283,356.75, 391,032.32 and 156,032.04 is: 215,324.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,356.75 : 391,032.32 = 156,032.04 : x
  2. Step 2: Convert to fraction form
    283,356.75/391,032.32 = 156,032.04/x
  3. Step 3: Cross multiply
    283,356.75x = 391,032.32 × 156,032.04
  4. Step 4: Simplify right side
    283,356.75x = 61,013,569,815.37
  5. Step 5: Solve for x
    x = 61,013,569,815.37/283,356.75
  6. Step 6: Final answer
    x = 215,324.22

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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.