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Finding the Fourth Proportional to 382,644.41, 528,777.54 and 286,985.03

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Solution

The fourth proportional to 382,644.41, 528,777.54 and 286,985.03 is: 396,585.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,644.41 : 528,777.54 = 286,985.03 : x
  2. Step 2: Convert to fraction form
    382,644.41/528,777.54 = 286,985.03/x
  3. Step 3: Cross multiply
    382,644.41x = 528,777.54 × 286,985.03
  4. Step 4: Simplify right side
    382,644.41x = 151,751,235,536.34
  5. Step 5: Solve for x
    x = 151,751,235,536.34/382,644.41
  6. Step 6: Final answer
    x = 396,585.53

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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.