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Finding the Fourth Proportional to 625,968, 863,835.84 and 357,696

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Solution

The fourth proportional to 625,968, 863,835.84 and 357,696 is: 493,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,968 : 863,835.84 = 357,696 : x
  2. Step 2: Convert to fraction form
    625,968/863,835.84 = 357,696/x
  3. Step 3: Cross multiply
    625,968x = 863,835.84 × 357,696
  4. Step 4: Simplify right side
    625,968x = 308,990,624,624.64
  5. Step 5: Solve for x
    x = 308,990,624,624.64/625,968
  6. Step 6: Final answer
    x = 493,620.48

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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.