Home / 923,208.63-1,274,024.74-515,306.93

Finding the Fourth Proportional to 923,208.63, 1,274,024.74 and 515,306.93

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Solution

The fourth proportional to 923,208.63, 1,274,024.74 and 515,306.93 is: 711,121.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,208.63 : 1,274,024.74 = 515,306.93 : x
  2. Step 2: Convert to fraction form
    923,208.63/1,274,024.74 = 515,306.93/x
  3. Step 3: Cross multiply
    923,208.63x = 1,274,024.74 × 515,306.93
  4. Step 4: Simplify right side
    923,208.63x = 656,513,777,513.45
  5. Step 5: Solve for x
    x = 656,513,777,513.45/923,208.63
  6. Step 6: Final answer
    x = 711,121.79

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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.