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Finding the Fourth Proportional to 383,290.80, 525,110.28 and 368,925.17

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Solution

The fourth proportional to 383,290.80, 525,110.28 and 368,925.17 is: 505,429.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,290.80 : 525,110.28 = 368,925.17 : x
  2. Step 2: Convert to fraction form
    383,290.80/525,110.28 = 368,925.17/x
  3. Step 3: Cross multiply
    383,290.80x = 525,110.28 × 368,925.17
  4. Step 4: Simplify right side
    383,290.80x = 193,726,394,847.57
  5. Step 5: Solve for x
    x = 193,726,394,847.57/383,290.80
  6. Step 6: Final answer
    x = 505,429.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.