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Finding the Fourth Proportional to 475,509.18, 656,199.56 and 260,658.30

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Solution

The fourth proportional to 475,509.18, 656,199.56 and 260,658.30 is: 359,706.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,509.18 : 656,199.56 = 260,658.30 : x
  2. Step 2: Convert to fraction form
    475,509.18/656,199.56 = 260,658.30/x
  3. Step 3: Cross multiply
    475,509.18x = 656,199.56 × 260,658.30
  4. Step 4: Simplify right side
    475,509.18x = 171,043,861,770.35
  5. Step 5: Solve for x
    x = 171,043,861,770.35/475,509.18
  6. Step 6: Final answer
    x = 359,706.75

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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.