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Finding the Fourth Proportional to 408,803.81, 613,205.89 and 183,901.54

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Solution

The fourth proportional to 408,803.81, 613,205.89 and 183,901.54 is: 275,852.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,803.81 : 613,205.89 = 183,901.54 : x
  2. Step 2: Convert to fraction form
    408,803.81/613,205.89 = 183,901.54/x
  3. Step 3: Cross multiply
    408,803.81x = 613,205.89 × 183,901.54
  4. Step 4: Simplify right side
    408,803.81x = 112,769,507,699.51
  5. Step 5: Solve for x
    x = 112,769,507,699.51/408,803.81
  6. Step 6: Final answer
    x = 275,852.39

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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.