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Finding the Fourth Proportional to 714,361.14, 985,863.69 and 472,218.93

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Solution

The fourth proportional to 714,361.14, 985,863.69 and 472,218.93 is: 651,692.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,361.14 : 985,863.69 = 472,218.93 : x
  2. Step 2: Convert to fraction form
    714,361.14/985,863.69 = 472,218.93/x
  3. Step 3: Cross multiply
    714,361.14x = 985,863.69 × 472,218.93
  4. Step 4: Simplify right side
    714,361.14x = 465,543,496,817.65
  5. Step 5: Solve for x
    x = 465,543,496,817.65/714,361.14
  6. Step 6: Final answer
    x = 651,692.08

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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.