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Finding the Fourth Proportional to 647,164.22, 893,117.04 and 360,686.36

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Solution

The fourth proportional to 647,164.22, 893,117.04 and 360,686.36 is: 497,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,164.22 : 893,117.04 = 360,686.36 : x
  2. Step 2: Convert to fraction form
    647,164.22/893,117.04 = 360,686.36/x
  3. Step 3: Cross multiply
    647,164.22x = 893,117.04 × 360,686.36
  4. Step 4: Simplify right side
    647,164.22x = 322,135,129,745.99
  5. Step 5: Solve for x
    x = 322,135,129,745.99/647,164.22
  6. Step 6: Final answer
    x = 497,764.13

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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.