Home / 989,983.92-1,366,178.52-537,274.92

Finding the Fourth Proportional to 989,983.92, 1,366,178.52 and 537,274.92

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Solution

The fourth proportional to 989,983.92, 1,366,178.52 and 537,274.92 is: 741,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,983.92 : 1,366,178.52 = 537,274.92 : x
  2. Step 2: Convert to fraction form
    989,983.92/1,366,178.52 = 537,274.92/x
  3. Step 3: Cross multiply
    989,983.92x = 1,366,178.52 × 537,274.92
  4. Step 4: Simplify right side
    989,983.92x = 734,013,455,038.72
  5. Step 5: Solve for x
    x = 734,013,455,038.72/989,983.92
  6. Step 6: Final answer
    x = 741,439.78

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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.