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Finding the Fourth Proportional to 647,999.24, 894,239.51 and 361,519.38

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Solution

The fourth proportional to 647,999.24, 894,239.51 and 361,519.38 is: 498,897.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,999.24 : 894,239.51 = 361,519.38 : x
  2. Step 2: Convert to fraction form
    647,999.24/894,239.51 = 361,519.38/x
  3. Step 3: Cross multiply
    647,999.24x = 894,239.51 × 361,519.38
  4. Step 4: Simplify right side
    647,999.24x = 323,284,911,419.11
  5. Step 5: Solve for x
    x = 323,284,911,419.11/647,999.24
  6. Step 6: Final answer
    x = 498,897.06

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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.