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Finding the Fourth Proportional to 923,800.89, 1,274,952.78 and 768,477.80

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Solution

The fourth proportional to 923,800.89, 1,274,952.78 and 768,477.80 is: 1,060,588.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,800.89 : 1,274,952.78 = 768,477.80 : x
  2. Step 2: Convert to fraction form
    923,800.89/1,274,952.78 = 768,477.80/x
  3. Step 3: Cross multiply
    923,800.89x = 1,274,952.78 × 768,477.80
  4. Step 4: Simplify right side
    923,800.89x = 979,772,901,103.52
  5. Step 5: Solve for x
    x = 979,772,901,103.52/923,800.89
  6. Step 6: Final answer
    x = 1,060,588.83

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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.