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Finding the Fourth Proportional to 488,891.70, 734,212.35 and 473,145.30

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Solution

The fourth proportional to 488,891.70, 734,212.35 and 473,145.30 is: 710,564.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,891.70 : 734,212.35 = 473,145.30 : x
  2. Step 2: Convert to fraction form
    488,891.70/734,212.35 = 473,145.30/x
  3. Step 3: Cross multiply
    488,891.70x = 734,212.35 × 473,145.30
  4. Step 4: Simplify right side
    488,891.70x = 347,389,122,604.46
  5. Step 5: Solve for x
    x = 347,389,122,604.46/488,891.70
  6. Step 6: Final answer
    x = 710,564.57

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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.