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Finding the Fourth Proportional to 638,513.36, 958,393.34 and 527,326.28

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Solution

The fourth proportional to 638,513.36, 958,393.34 and 527,326.28 is: 791,504.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,513.36 : 958,393.34 = 527,326.28 : x
  2. Step 2: Convert to fraction form
    638,513.36/958,393.34 = 527,326.28/x
  3. Step 3: Cross multiply
    638,513.36x = 958,393.34 × 527,326.28
  4. Step 4: Simplify right side
    638,513.36x = 505,385,994,758.98
  5. Step 5: Solve for x
    x = 505,385,994,758.98/638,513.36
  6. Step 6: Final answer
    x = 791,504.18

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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.