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Finding the Fourth Proportional to 313,278.57, 432,324.81 and 170,038.58

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Solution

The fourth proportional to 313,278.57, 432,324.81 and 170,038.58 is: 234,653.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,278.57 : 432,324.81 = 170,038.58 : x
  2. Step 2: Convert to fraction form
    313,278.57/432,324.81 = 170,038.58/x
  3. Step 3: Cross multiply
    313,278.57x = 432,324.81 × 170,038.58
  4. Step 4: Simplify right side
    313,278.57x = 73,511,894,629.55
  5. Step 5: Solve for x
    x = 73,511,894,629.55/313,278.57
  6. Step 6: Final answer
    x = 234,653.44

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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.