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Finding the Fourth Proportional to 488,726.18, 732,859.23 and 189,346.94

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Solution

The fourth proportional to 488,726.18, 732,859.23 and 189,346.94 is: 283,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,726.18 : 732,859.23 = 189,346.94 : x
  2. Step 2: Convert to fraction form
    488,726.18/732,859.23 = 189,346.94/x
  3. Step 3: Cross multiply
    488,726.18x = 732,859.23 × 189,346.94
  4. Step 4: Simplify right side
    488,726.18x = 138,764,652,651.26
  5. Step 5: Solve for x
    x = 138,764,652,651.26/488,726.18
  6. Step 6: Final answer
    x = 283,931.29

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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.