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Finding the Fourth Proportional to 445,392.84, 666,893.70 and 374,534.04

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Solution

The fourth proportional to 445,392.84, 666,893.70 and 374,534.04 is: 560,795.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,392.84 : 666,893.70 = 374,534.04 : x
  2. Step 2: Convert to fraction form
    445,392.84/666,893.70 = 374,534.04/x
  3. Step 3: Cross multiply
    445,392.84x = 666,893.70 × 374,534.04
  4. Step 4: Simplify right side
    445,392.84x = 249,774,391,711.55
  5. Step 5: Solve for x
    x = 249,774,391,711.55/445,392.84
  6. Step 6: Final answer
    x = 560,795.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.