Home / 722,111.89-996,545.54-399,822.01

Finding the Fourth Proportional to 722,111.89, 996,545.54 and 399,822.01

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Solution

The fourth proportional to 722,111.89, 996,545.54 and 399,822.01 is: 551,771.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,111.89 : 996,545.54 = 399,822.01 : x
  2. Step 2: Convert to fraction form
    722,111.89/996,545.54 = 399,822.01/x
  3. Step 3: Cross multiply
    722,111.89x = 996,545.54 × 399,822.01
  4. Step 4: Simplify right side
    722,111.89x = 398,440,840,859.34
  5. Step 5: Solve for x
    x = 398,440,840,859.34/722,111.89
  6. Step 6: Final answer
    x = 551,771.61

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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.