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Finding the Fourth Proportional to 569,731.44, 786,197.32 and 311,557.12

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Solution

The fourth proportional to 569,731.44, 786,197.32 and 311,557.12 is: 429,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,731.44 : 786,197.32 = 311,557.12 : x
  2. Step 2: Convert to fraction form
    569,731.44/786,197.32 = 311,557.12/x
  3. Step 3: Cross multiply
    569,731.44x = 786,197.32 × 311,557.12
  4. Step 4: Simplify right side
    569,731.44x = 244,945,372,770.92
  5. Step 5: Solve for x
    x = 244,945,372,770.92/569,731.44
  6. Step 6: Final answer
    x = 429,931.29

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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.