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Finding the Fourth Proportional to 638,513.51, 958,393.53 and 527,326.43

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Solution

The fourth proportional to 638,513.51, 958,393.53 and 527,326.43 is: 791,504.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,513.51 : 958,393.53 = 527,326.43 : x
  2. Step 2: Convert to fraction form
    638,513.51/958,393.53 = 527,326.43/x
  3. Step 3: Cross multiply
    638,513.51x = 958,393.53 × 527,326.43
  4. Step 4: Simplify right side
    638,513.51x = 505,386,233,918.03
  5. Step 5: Solve for x
    x = 505,386,233,918.03/638,513.51
  6. Step 6: Final answer
    x = 791,504.38

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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.