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Finding the Fourth Proportional to 710,212.22, 980,087.04 and 387,922.52

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Solution

The fourth proportional to 710,212.22, 980,087.04 and 387,922.52 is: 535,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,212.22 : 980,087.04 = 387,922.52 : x
  2. Step 2: Convert to fraction form
    710,212.22/980,087.04 = 387,922.52/x
  3. Step 3: Cross multiply
    710,212.22x = 980,087.04 × 387,922.52
  4. Step 4: Simplify right side
    710,212.22x = 380,197,834,376.14
  5. Step 5: Solve for x
    x = 380,197,834,376.14/710,212.22
  6. Step 6: Final answer
    x = 535,329.90

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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.