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Finding the Fourth Proportional to 286,176.76, 394,925.49 and 178,809.10

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Solution

The fourth proportional to 286,176.76, 394,925.49 and 178,809.10 is: 246,757.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,176.76 : 394,925.49 = 178,809.10 : x
  2. Step 2: Convert to fraction form
    286,176.76/394,925.49 = 178,809.10/x
  3. Step 3: Cross multiply
    286,176.76x = 394,925.49 × 178,809.10
  4. Step 4: Simplify right side
    286,176.76x = 70,616,271,433.96
  5. Step 5: Solve for x
    x = 70,616,271,433.96/286,176.76
  6. Step 6: Final answer
    x = 246,757.53

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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.