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Finding the Fourth Proportional to 641,455.32, 885,197.06 and 369,522.39

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Solution

The fourth proportional to 641,455.32, 885,197.06 and 369,522.39 is: 509,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,455.32 : 885,197.06 = 369,522.39 : x
  2. Step 2: Convert to fraction form
    641,455.32/885,197.06 = 369,522.39/x
  3. Step 3: Cross multiply
    641,455.32x = 885,197.06 × 369,522.39
  4. Step 4: Simplify right side
    641,455.32x = 327,100,131,384.56
  5. Step 5: Solve for x
    x = 327,100,131,384.56/641,455.32
  6. Step 6: Final answer
    x = 509,934.40

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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.