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Finding the Fourth Proportional to 632,540.64, 872,915.92 and 346,065.51

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Solution

The fourth proportional to 632,540.64, 872,915.92 and 346,065.51 is: 477,575.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,540.64 : 872,915.92 = 346,065.51 : x
  2. Step 2: Convert to fraction form
    632,540.64/872,915.92 = 346,065.51/x
  3. Step 3: Cross multiply
    632,540.64x = 872,915.92 × 346,065.51
  4. Step 4: Simplify right side
    632,540.64x = 302,086,093,041.92
  5. Step 5: Solve for x
    x = 302,086,093,041.92/632,540.64
  6. Step 6: Final answer
    x = 477,575.79

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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.