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Finding the Fourth Proportional to 750,679.70, 1,126,211.55 and 529,495.70

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Solution

The fourth proportional to 750,679.70, 1,126,211.55 and 529,495.70 is: 794,378.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,679.70 : 1,126,211.55 = 529,495.70 : x
  2. Step 2: Convert to fraction form
    750,679.70/1,126,211.55 = 529,495.70/x
  3. Step 3: Cross multiply
    750,679.70x = 1,126,211.55 × 529,495.70
  4. Step 4: Simplify right side
    750,679.70x = 596,324,173,015.34
  5. Step 5: Solve for x
    x = 596,324,173,015.34/750,679.70
  6. Step 6: Final answer
    x = 794,378.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.