Home / 528,072.81-791,901.94-186,443.36

Finding the Fourth Proportional to 528,072.81, 791,901.94 and 186,443.36

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Solution

The fourth proportional to 528,072.81, 791,901.94 and 186,443.36 is: 279,591.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,072.81 : 791,901.94 = 186,443.36 : x
  2. Step 2: Convert to fraction form
    528,072.81/791,901.94 = 186,443.36/x
  3. Step 3: Cross multiply
    528,072.81x = 791,901.94 × 186,443.36
  4. Step 4: Simplify right side
    528,072.81x = 147,644,858,484.12
  5. Step 5: Solve for x
    x = 147,644,858,484.12/528,072.81
  6. Step 6: Final answer
    x = 279,591.86

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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.