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Finding the Fourth Proportional to 355,846.90, 533,597.55 and 197,907.70

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Solution

The fourth proportional to 355,846.90, 533,597.55 and 197,907.70 is: 296,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,846.90 : 533,597.55 = 197,907.70 : x
  2. Step 2: Convert to fraction form
    355,846.90/533,597.55 = 197,907.70/x
  3. Step 3: Cross multiply
    355,846.90x = 533,597.55 × 197,907.70
  4. Step 4: Simplify right side
    355,846.90x = 105,603,063,846.14
  5. Step 5: Solve for x
    x = 105,603,063,846.14/355,846.90
  6. Step 6: Final answer
    x = 296,765.45

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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.