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Finding the Fourth Proportional to 656,599.54, 985,342.48 and 257,190.77

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Solution

The fourth proportional to 656,599.54, 985,342.48 and 257,190.77 is: 385,959.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,599.54 : 985,342.48 = 257,190.77 : x
  2. Step 2: Convert to fraction form
    656,599.54/985,342.48 = 257,190.77/x
  3. Step 3: Cross multiply
    656,599.54x = 985,342.48 × 257,190.77
  4. Step 4: Simplify right side
    656,599.54x = 253,420,992,002.39
  5. Step 5: Solve for x
    x = 253,420,992,002.39/656,599.54
  6. Step 6: Final answer
    x = 385,959.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.