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Finding the Fourth Proportional to 299,498.13, 413,247.15 and 190,646.28

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Solution

The fourth proportional to 299,498.13, 413,247.15 and 190,646.28 is: 263,053.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,498.13 : 413,247.15 = 190,646.28 : x
  2. Step 2: Convert to fraction form
    299,498.13/413,247.15 = 190,646.28/x
  3. Step 3: Cross multiply
    299,498.13x = 413,247.15 × 190,646.28
  4. Step 4: Simplify right side
    299,498.13x = 78,784,031,868.10
  5. Step 5: Solve for x
    x = 78,784,031,868.10/299,498.13
  6. Step 6: Final answer
    x = 263,053.50

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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.