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Finding the Fourth Proportional to 641,257.96, 884,859.06 and 369,414.76

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Solution

The fourth proportional to 641,257.96, 884,859.06 and 369,414.76 is: 509,748.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,257.96 : 884,859.06 = 369,414.76 : x
  2. Step 2: Convert to fraction form
    641,257.96/884,859.06 = 369,414.76/x
  3. Step 3: Cross multiply
    641,257.96x = 884,859.06 × 369,414.76
  4. Step 4: Simplify right side
    641,257.96x = 326,879,997,283.73
  5. Step 5: Solve for x
    x = 326,879,997,283.73/641,257.96
  6. Step 6: Final answer
    x = 509,748.05

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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.