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Finding the Fourth Proportional to 692,069.96, 954,988.98 and 401,636.36

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Solution

The fourth proportional to 692,069.96, 954,988.98 and 401,636.36 is: 554,218.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,069.96 : 954,988.98 = 401,636.36 : x
  2. Step 2: Convert to fraction form
    692,069.96/954,988.98 = 401,636.36/x
  3. Step 3: Cross multiply
    692,069.96x = 954,988.98 × 401,636.36
  4. Step 4: Simplify right side
    692,069.96x = 383,558,297,767.31
  5. Step 5: Solve for x
    x = 383,558,297,767.31/692,069.96
  6. Step 6: Final answer
    x = 554,218.97

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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.