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Finding the Fourth Proportional to 569,619.69, 786,073.11 and 321,241.90

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Solution

The fourth proportional to 569,619.69, 786,073.11 and 321,241.90 is: 443,312.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,619.69 : 786,073.11 = 321,241.90 : x
  2. Step 2: Convert to fraction form
    569,619.69/786,073.11 = 321,241.90/x
  3. Step 3: Cross multiply
    569,619.69x = 786,073.11 × 321,241.90
  4. Step 4: Simplify right side
    569,619.69x = 252,519,619,395.31
  5. Step 5: Solve for x
    x = 252,519,619,395.31/569,619.69
  6. Step 6: Final answer
    x = 443,312.66

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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.