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Finding the Fourth Proportional to 923,552.88, 1,274,490.88 and 515,661.68

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Solution

The fourth proportional to 923,552.88, 1,274,490.88 and 515,661.68 is: 711,606.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,552.88 : 1,274,490.88 = 515,661.68 : x
  2. Step 2: Convert to fraction form
    923,552.88/1,274,490.88 = 515,661.68/x
  3. Step 3: Cross multiply
    923,552.88x = 1,274,490.88 × 515,661.68
  4. Step 4: Simplify right side
    923,552.88x = 657,206,108,325.48
  5. Step 5: Solve for x
    x = 657,206,108,325.48/923,552.88
  6. Step 6: Final answer
    x = 711,606.37

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Double scale
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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.