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Finding the Fourth Proportional to 569,753.56, 786,228.12 and 311,579.56

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Solution

The fourth proportional to 569,753.56, 786,228.12 and 311,579.56 is: 429,962.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,753.56 : 786,228.12 = 311,579.56 : x
  2. Step 2: Convert to fraction form
    569,753.56/786,228.12 = 311,579.56/x
  3. Step 3: Cross multiply
    569,753.56x = 786,228.12 × 311,579.56
  4. Step 4: Simplify right side
    569,753.56x = 244,972,611,689.23
  5. Step 5: Solve for x
    x = 244,972,611,689.23/569,753.56
  6. Step 6: Final answer
    x = 429,962.41

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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.