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Finding the Fourth Proportional to 312,004.56, 430,529.22 and 176,030.56

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Solution

The fourth proportional to 312,004.56, 430,529.22 and 176,030.56 is: 242,901.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,004.56 : 430,529.22 = 176,030.56 : x
  2. Step 2: Convert to fraction form
    312,004.56/430,529.22 = 176,030.56/x
  3. Step 3: Cross multiply
    312,004.56x = 430,529.22 × 176,030.56
  4. Step 4: Simplify right side
    312,004.56x = 75,786,299,692.96
  5. Step 5: Solve for x
    x = 75,786,299,692.96/312,004.56
  6. Step 6: Final answer
    x = 242,901.26

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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.