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Finding the Fourth Proportional to 722,223.45, 996,570.61 and 399,925.26

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Solution

The fourth proportional to 722,223.45, 996,570.61 and 399,925.26 is: 551,842.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,223.45 : 996,570.61 = 399,925.26 : x
  2. Step 2: Convert to fraction form
    722,223.45/996,570.61 = 399,925.26/x
  3. Step 3: Cross multiply
    722,223.45x = 996,570.61 × 399,925.26
  4. Step 4: Simplify right side
    722,223.45x = 398,553,759,312.80
  5. Step 5: Solve for x
    x = 398,553,759,312.80/722,223.45
  6. Step 6: Final answer
    x = 551,842.73

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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.