Home / 545,945.60-819,033.60-172,006.40

Finding the Fourth Proportional to 545,945.60, 819,033.60 and 172,006.40

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Solution

The fourth proportional to 545,945.60, 819,033.60 and 172,006.40 is: 258,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,945.60 : 819,033.60 = 172,006.40 : x
  2. Step 2: Convert to fraction form
    545,945.60/819,033.60 = 172,006.40/x
  3. Step 3: Cross multiply
    545,945.60x = 819,033.60 × 172,006.40
  4. Step 4: Simplify right side
    545,945.60x = 140,879,021,015.04
  5. Step 5: Solve for x
    x = 140,879,021,015.04/545,945.60
  6. Step 6: Final answer
    x = 258,045.90

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1.5x scale

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.