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Finding the Fourth Proportional to 451,137.52, 622,590.40 and 257,597.76

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Solution

The fourth proportional to 451,137.52, 622,590.40 and 257,597.76 is: 355,496.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,137.52 : 622,590.40 = 257,597.76 : x
  2. Step 2: Convert to fraction form
    451,137.52/622,590.40 = 257,597.76/x
  3. Step 3: Cross multiply
    451,137.52x = 622,590.40 × 257,597.76
  4. Step 4: Simplify right side
    451,137.52x = 160,377,892,437.50
  5. Step 5: Solve for x
    x = 160,377,892,437.50/451,137.52
  6. Step 6: Final answer
    x = 355,496.68

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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.