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Finding the Fourth Proportional to 722,256.48, 996,715.26 and 399,992.04

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Solution

The fourth proportional to 722,256.48, 996,715.26 and 399,992.04 is: 551,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,256.48 : 996,715.26 = 399,992.04 : x
  2. Step 2: Convert to fraction form
    722,256.48/996,715.26 = 399,992.04/x
  3. Step 3: Cross multiply
    722,256.48x = 996,715.26 × 399,992.04
  4. Step 4: Simplify right side
    722,256.48x = 398,678,170,146.53
  5. Step 5: Solve for x
    x = 398,678,170,146.53/722,256.48
  6. Step 6: Final answer
    x = 551,989.74

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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.