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Finding the Fourth Proportional to 632,712.36, 873,121.86 and 346,213.20

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Solution

The fourth proportional to 632,712.36, 873,121.86 and 346,213.20 is: 477,762.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,712.36 : 873,121.86 = 346,213.20 : x
  2. Step 2: Convert to fraction form
    632,712.36/873,121.86 = 346,213.20/x
  3. Step 3: Cross multiply
    632,712.36x = 873,121.86 × 346,213.20
  4. Step 4: Simplify right side
    632,712.36x = 302,286,313,140.55
  5. Step 5: Solve for x
    x = 302,286,313,140.55/632,712.36
  6. Step 6: Final answer
    x = 477,762.62

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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.