Home / 389,382.24-583,985.28-178,817.76

Finding the Fourth Proportional to 389,382.24, 583,985.28 and 178,817.76

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Solution

The fourth proportional to 389,382.24, 583,985.28 and 178,817.76 is: 268,186.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,382.24 : 583,985.28 = 178,817.76 : x
  2. Step 2: Convert to fraction form
    389,382.24/583,985.28 = 178,817.76/x
  3. Step 3: Cross multiply
    389,382.24x = 583,985.28 × 178,817.76
  4. Step 4: Simplify right side
    389,382.24x = 104,426,939,642.57
  5. Step 5: Solve for x
    x = 104,426,939,642.57/389,382.24
  6. Step 6: Final answer
    x = 268,186.19

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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.