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Finding the Fourth Proportional to 632,665.76, 873,078.70 and 346,185.82

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Solution

The fourth proportional to 632,665.76, 873,078.70 and 346,185.82 is: 477,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,665.76 : 873,078.70 = 346,185.82 : x
  2. Step 2: Convert to fraction form
    632,665.76/873,078.70 = 346,185.82/x
  3. Step 3: Cross multiply
    632,665.76x = 873,078.70 × 346,185.82
  4. Step 4: Simplify right side
    632,665.76x = 302,247,465,684.03
  5. Step 5: Solve for x
    x = 302,247,465,684.03/632,665.76
  6. Step 6: Final answer
    x = 477,736.40

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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.