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Finding the Fourth Proportional to 697,572, 1,046,367.84 and 198,936

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Solution

The fourth proportional to 697,572, 1,046,367.84 and 198,936 is: 298,406.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,572 : 1,046,367.84 = 198,936 : x
  2. Step 2: Convert to fraction form
    697,572/1,046,367.84 = 198,936/x
  3. Step 3: Cross multiply
    697,572x = 1,046,367.84 × 198,936
  4. Step 4: Simplify right side
    697,572x = 208,160,232,618.24
  5. Step 5: Solve for x
    x = 208,160,232,618.24/697,572
  6. Step 6: Final answer
    x = 298,406.81

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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.