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Finding the Fourth Proportional to 986,605.03, 1,361,516.15 and 533,896.03

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Solution

The fourth proportional to 986,605.03, 1,361,516.15 and 533,896.03 is: 736,777.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,605.03 : 1,361,516.15 = 533,896.03 : x
  2. Step 2: Convert to fraction form
    986,605.03/1,361,516.15 = 533,896.03/x
  3. Step 3: Cross multiply
    986,605.03x = 1,361,516.15 × 533,896.03
  4. Step 4: Simplify right side
    986,605.03x = 726,908,064,596.40
  5. Step 5: Solve for x
    x = 726,908,064,596.40/986,605.03
  6. Step 6: Final answer
    x = 736,777.17

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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.