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Finding the Fourth Proportional to 722,094.16, 996,521.07 and 399,804.25

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Solution

The fourth proportional to 722,094.16, 996,521.07 and 399,804.25 is: 551,747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,094.16 : 996,521.07 = 399,804.25 : x
  2. Step 2: Convert to fraction form
    722,094.16/996,521.07 = 399,804.25/x
  3. Step 3: Cross multiply
    722,094.16x = 996,521.07 × 399,804.25
  4. Step 4: Simplify right side
    722,094.16x = 398,413,359,000.55
  5. Step 5: Solve for x
    x = 398,413,359,000.55/722,094.16
  6. Step 6: Final answer
    x = 551,747.10

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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.