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Finding the Fourth Proportional to 611,069.81, 842,690.52 and 366,015.41

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Solution

The fourth proportional to 611,069.81, 842,690.52 and 366,015.41 is: 504,750.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,069.81 : 842,690.52 = 366,015.41 : x
  2. Step 2: Convert to fraction form
    611,069.81/842,690.52 = 366,015.41/x
  3. Step 3: Cross multiply
    611,069.81x = 842,690.52 × 366,015.41
  4. Step 4: Simplify right side
    611,069.81x = 308,437,715,127.55
  5. Step 5: Solve for x
    x = 308,437,715,127.55/611,069.81
  6. Step 6: Final answer
    x = 504,750.38

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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.