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Finding the Fourth Proportional to 478,606.34, 717,655.57 and 141,600.58

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Solution

The fourth proportional to 478,606.34, 717,655.57 and 141,600.58 is: 212,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,606.34 : 717,655.57 = 141,600.58 : x
  2. Step 2: Convert to fraction form
    478,606.34/717,655.57 = 141,600.58/x
  3. Step 3: Cross multiply
    478,606.34x = 717,655.57 × 141,600.58
  4. Step 4: Simplify right side
    478,606.34x = 101,620,442,804.09
  5. Step 5: Solve for x
    x = 101,620,442,804.09/478,606.34
  6. Step 6: Final answer
    x = 212,325.73

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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.