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Finding the Fourth Proportional to 603,166.80, 903,713.40 and 392,696.40

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Solution

The fourth proportional to 603,166.80, 903,713.40 and 392,696.40 is: 588,369.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,166.80 : 903,713.40 = 392,696.40 : x
  2. Step 2: Convert to fraction form
    603,166.80/903,713.40 = 392,696.40/x
  3. Step 3: Cross multiply
    603,166.80x = 903,713.40 × 392,696.40
  4. Step 4: Simplify right side
    603,166.80x = 354,884,998,811.76
  5. Step 5: Solve for x
    x = 354,884,998,811.76/603,166.80
  6. Step 6: Final answer
    x = 588,369.58

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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.