Home / 545,985.60-819,093.60-172,046.40

Finding the Fourth Proportional to 545,985.60, 819,093.60 and 172,046.40

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Solution

The fourth proportional to 545,985.60, 819,093.60 and 172,046.40 is: 258,105.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,985.60 : 819,093.60 = 172,046.40 : x
  2. Step 2: Convert to fraction form
    545,985.60/819,093.60 = 172,046.40/x
  3. Step 3: Cross multiply
    545,985.60x = 819,093.60 × 172,046.40
  4. Step 4: Simplify right side
    545,985.60x = 140,922,105,143.04
  5. Step 5: Solve for x
    x = 140,922,105,143.04/545,985.60
  6. Step 6: Final answer
    x = 258,105.90

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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.