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Finding the Fourth Proportional to 423,491.13, 584,161.20 and 251,295.86

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Solution

The fourth proportional to 423,491.13, 584,161.20 and 251,295.86 is: 346,636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,491.13 : 584,161.20 = 251,295.86 : x
  2. Step 2: Convert to fraction form
    423,491.13/584,161.20 = 251,295.86/x
  3. Step 3: Cross multiply
    423,491.13x = 584,161.20 × 251,295.86
  4. Step 4: Simplify right side
    423,491.13x = 146,797,292,593.04
  5. Step 5: Solve for x
    x = 146,797,292,593.04/423,491.13
  6. Step 6: Final answer
    x = 346,636.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.