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Finding the Fourth Proportional to 449,156.64, 619,940.40 and 296,222.46

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Solution

The fourth proportional to 449,156.64, 619,940.40 and 296,222.46 is: 408,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,156.64 : 619,940.40 = 296,222.46 : x
  2. Step 2: Convert to fraction form
    449,156.64/619,940.40 = 296,222.46/x
  3. Step 3: Cross multiply
    449,156.64x = 619,940.40 × 296,222.46
  4. Step 4: Simplify right side
    449,156.64x = 183,640,270,341.38
  5. Step 5: Solve for x
    x = 183,640,270,341.38/449,156.64
  6. Step 6: Final answer
    x = 408,855.74

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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.