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Finding the Fourth Proportional to 476,897.55, 658,175.84 and 286,015.95

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Solution

The fourth proportional to 476,897.55, 658,175.84 and 286,015.95 is: 394,736.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,897.55 : 658,175.84 = 286,015.95 : x
  2. Step 2: Convert to fraction form
    476,897.55/658,175.84 = 286,015.95/x
  3. Step 3: Cross multiply
    476,897.55x = 658,175.84 × 286,015.95
  4. Step 4: Simplify right side
    476,897.55x = 188,248,786,714.57
  5. Step 5: Solve for x
    x = 188,248,786,714.57/476,897.55
  6. Step 6: Final answer
    x = 394,736.33

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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.