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Finding the Fourth Proportional to 369,464.76, 509,861.40 and 199,698.84

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Solution

The fourth proportional to 369,464.76, 509,861.40 and 199,698.84 is: 275,584.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,464.76 : 509,861.40 = 199,698.84 : x
  2. Step 2: Convert to fraction form
    369,464.76/509,861.40 = 199,698.84/x
  3. Step 3: Cross multiply
    369,464.76x = 509,861.40 × 199,698.84
  4. Step 4: Simplify right side
    369,464.76x = 101,818,730,140.78
  5. Step 5: Solve for x
    x = 101,818,730,140.78/369,464.76
  6. Step 6: Final answer
    x = 275,584.42

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Half scale
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Double scale
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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.