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Finding the Fourth Proportional to 740.54, 1,021.51 and 593.93

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Solution

The fourth proportional to 740.54, 1,021.51 and 593.93 is: 819.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.54 : 1,021.51 = 593.93 : x
  2. Step 2: Convert to fraction form
    740.54/1,021.51 = 593.93/x
  3. Step 3: Cross multiply
    740.54x = 1,021.51 × 593.93
  4. Step 4: Simplify right side
    740.54x = 606,708.73
  5. Step 5: Solve for x
    x = 606,708.73/740.54
  6. Step 6: Final answer
    x = 819.28

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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.