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Finding the Fourth Proportional to 555,871.48, 767,105.40 and 301,223.14

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Solution

The fourth proportional to 555,871.48, 767,105.40 and 301,223.14 is: 415,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,871.48 : 767,105.40 = 301,223.14 : x
  2. Step 2: Convert to fraction form
    555,871.48/767,105.40 = 301,223.14/x
  3. Step 3: Cross multiply
    555,871.48x = 767,105.40 × 301,223.14
  4. Step 4: Simplify right side
    555,871.48x = 231,069,897,298.96
  5. Step 5: Solve for x
    x = 231,069,897,298.96/555,871.48
  6. Step 6: Final answer
    x = 415,689.43

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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.