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Finding the Fourth Proportional to 722,192.58, 996,613.58 and 399,895.76

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Solution

The fourth proportional to 722,192.58, 996,613.58 and 399,895.76 is: 551,849.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,192.58 : 996,613.58 = 399,895.76 : x
  2. Step 2: Convert to fraction form
    722,192.58/996,613.58 = 399,895.76/x
  3. Step 3: Cross multiply
    722,192.58x = 996,613.58 × 399,895.76
  4. Step 4: Simplify right side
    722,192.58x = 398,541,548,491.69
  5. Step 5: Solve for x
    x = 398,541,548,491.69/722,192.58
  6. Step 6: Final answer
    x = 551,849.41

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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.