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Finding the Fourth Proportional to 312,000.56, 430,523.71 and 176,026.57

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Solution

The fourth proportional to 312,000.56, 430,523.71 and 176,026.57 is: 242,895.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,000.56 : 430,523.71 = 176,026.57 : x
  2. Step 2: Convert to fraction form
    312,000.56/430,523.71 = 176,026.57/x
  3. Step 3: Cross multiply
    312,000.56x = 430,523.71 × 176,026.57
  4. Step 4: Simplify right side
    312,000.56x = 75,783,610,458.60
  5. Step 5: Solve for x
    x = 75,783,610,458.60/312,000.56
  6. Step 6: Final answer
    x = 242,895.75

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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.