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Finding the Fourth Proportional to 511,627.41, 706,111.26 and 425,438.13

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Solution

The fourth proportional to 511,627.41, 706,111.26 and 425,438.13 is: 587,159.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,627.41 : 706,111.26 = 425,438.13 : x
  2. Step 2: Convert to fraction form
    511,627.41/706,111.26 = 425,438.13/x
  3. Step 3: Cross multiply
    511,627.41x = 706,111.26 × 425,438.13
  4. Step 4: Simplify right side
    511,627.41x = 300,406,654,026.34
  5. Step 5: Solve for x
    x = 300,406,654,026.34/511,627.41
  6. Step 6: Final answer
    x = 587,159.03

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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.