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Finding the Fourth Proportional to 654,078.80, 981,247.80 and 549,621.20

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Solution

The fourth proportional to 654,078.80, 981,247.80 and 549,621.20 is: 824,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,078.80 : 981,247.80 = 549,621.20 : x
  2. Step 2: Convert to fraction form
    654,078.80/981,247.80 = 549,621.20/x
  3. Step 3: Cross multiply
    654,078.80x = 981,247.80 × 549,621.20
  4. Step 4: Simplify right side
    654,078.80x = 539,314,593,333.36
  5. Step 5: Solve for x
    x = 539,314,593,333.36/654,078.80
  6. Step 6: Final answer
    x = 824,540.70

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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.