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Finding the Fourth Proportional to 632,720.88, 873,154.84 and 346,240.98

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Solution

The fourth proportional to 632,720.88, 873,154.84 and 346,240.98 is: 477,812.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,720.88 : 873,154.84 = 346,240.98 : x
  2. Step 2: Convert to fraction form
    632,720.88/873,154.84 = 346,240.98/x
  3. Step 3: Cross multiply
    632,720.88x = 873,154.84 × 346,240.98
  4. Step 4: Simplify right side
    632,720.88x = 302,321,987,493.34
  5. Step 5: Solve for x
    x = 302,321,987,493.34/632,720.88
  6. Step 6: Final answer
    x = 477,812.57

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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.