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Finding the Fourth Proportional to 557,378.30, 836,288.99 and 178,357.43

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Solution

The fourth proportional to 557,378.30, 836,288.99 and 178,357.43 is: 267,607.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,378.30 : 836,288.99 = 178,357.43 : x
  2. Step 2: Convert to fraction form
    557,378.30/836,288.99 = 178,357.43/x
  3. Step 3: Cross multiply
    557,378.30x = 836,288.99 × 178,357.43
  4. Step 4: Simplify right side
    557,378.30x = 149,158,349,920.46
  5. Step 5: Solve for x
    x = 149,158,349,920.46/557,378.30
  6. Step 6: Final answer
    x = 267,607.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.