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Finding the Fourth Proportional to 449,133.67, 619,908.66 and 296,199.46

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Solution

The fourth proportional to 449,133.67, 619,908.66 and 296,199.46 is: 408,823.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,133.67 : 619,908.66 = 296,199.46 : x
  2. Step 2: Convert to fraction form
    449,133.67/619,908.66 = 296,199.46/x
  3. Step 3: Cross multiply
    449,133.67x = 619,908.66 × 296,199.46
  4. Step 4: Simplify right side
    449,133.67x = 183,616,610,341.32
  5. Step 5: Solve for x
    x = 183,616,610,341.32/449,133.67
  6. Step 6: Final answer
    x = 408,823.97

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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.