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Finding the Fourth Proportional to 532,649.40, 798,974.10 and 448,668.60

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Solution

The fourth proportional to 532,649.40, 798,974.10 and 448,668.60 is: 673,002.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,649.40 : 798,974.10 = 448,668.60 : x
  2. Step 2: Convert to fraction form
    532,649.40/798,974.10 = 448,668.60/x
  3. Step 3: Cross multiply
    532,649.40x = 798,974.10 × 448,668.60
  4. Step 4: Simplify right side
    532,649.40x = 358,474,590,883.26
  5. Step 5: Solve for x
    x = 358,474,590,883.26/532,649.40
  6. Step 6: Final answer
    x = 673,002.90

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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.