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Finding the Fourth Proportional to 607,923.70, 911,903.99 and 208,558.69

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Solution

The fourth proportional to 607,923.70, 911,903.99 and 208,558.69 is: 312,844.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,923.70 : 911,903.99 = 208,558.69 : x
  2. Step 2: Convert to fraction form
    607,923.70/911,903.99 = 208,558.69/x
  3. Step 3: Cross multiply
    607,923.70x = 911,903.99 × 208,558.69
  4. Step 4: Simplify right side
    607,923.70x = 190,185,498,237.62
  5. Step 5: Solve for x
    x = 190,185,498,237.62/607,923.70
  6. Step 6: Final answer
    x = 312,844.36

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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.