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Finding the Fourth Proportional to 641,456.82, 885,199.13 and 369,523.89

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Solution

The fourth proportional to 641,456.82, 885,199.13 and 369,523.89 is: 509,936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,456.82 : 885,199.13 = 369,523.89 : x
  2. Step 2: Convert to fraction form
    641,456.82/885,199.13 = 369,523.89/x
  3. Step 3: Cross multiply
    641,456.82x = 885,199.13 × 369,523.89
  4. Step 4: Simplify right side
    641,456.82x = 327,102,224,094.60
  5. Step 5: Solve for x
    x = 327,102,224,094.60/641,456.82
  6. Step 6: Final answer
    x = 509,936.47

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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.