Home / 1,133,443.97-1,564,033.77-643,257.39

Finding the Fourth Proportional to 1,133,443.97, 1,564,033.77 and 643,257.39

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Solution

The fourth proportional to 1,133,443.97, 1,564,033.77 and 643,257.39 is: 887,627.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,443.97 : 1,564,033.77 = 643,257.39 : x
  2. Step 2: Convert to fraction form
    1,133,443.97/1,564,033.77 = 643,257.39/x
  3. Step 3: Cross multiply
    1,133,443.97x = 1,564,033.77 × 643,257.39
  4. Step 4: Simplify right side
    1,133,443.97x = 1,006,076,280,762.06
  5. Step 5: Solve for x
    x = 1,006,076,280,762.06/1,133,443.97
  6. Step 6: Final answer
    x = 887,627.71

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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.