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Finding the Fourth Proportional to 569,885.83, 786,448.64 and 311,757.22

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Solution

The fourth proportional to 569,885.83, 786,448.64 and 311,757.22 is: 430,228.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,885.83 : 786,448.64 = 311,757.22 : x
  2. Step 2: Convert to fraction form
    569,885.83/786,448.64 = 311,757.22/x
  3. Step 3: Cross multiply
    569,885.83x = 786,448.64 × 311,757.22
  4. Step 4: Simplify right side
    569,885.83x = 245,181,043,441.64
  5. Step 5: Solve for x
    x = 245,181,043,441.64/569,885.83
  6. Step 6: Final answer
    x = 430,228.36

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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.