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Finding the Fourth Proportional to 873,691.68, 1,308,856.68 and 535,745.88

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Solution

The fourth proportional to 873,691.68, 1,308,856.68 and 535,745.88 is: 802,588.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,691.68 : 1,308,856.68 = 535,745.88 : x
  2. Step 2: Convert to fraction form
    873,691.68/1,308,856.68 = 535,745.88/x
  3. Step 3: Cross multiply
    873,691.68x = 1,308,856.68 × 535,745.88
  4. Step 4: Simplify right side
    873,691.68x = 701,214,573,820.48
  5. Step 5: Solve for x
    x = 701,214,573,820.48/873,691.68
  6. Step 6: Final answer
    x = 802,588.13

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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.