Home / 1,638,277.77-2,455,641.54-838,462.71

Finding the Fourth Proportional to 1,638,277.77, 2,455,641.54 and 838,462.71

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Solution

The fourth proportional to 1,638,277.77, 2,455,641.54 and 838,462.71 is: 1,256,785.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,277.77 : 2,455,641.54 = 838,462.71 : x
  2. Step 2: Convert to fraction form
    1,638,277.77/2,455,641.54 = 838,462.71/x
  3. Step 3: Cross multiply
    1,638,277.77x = 2,455,641.54 × 838,462.71
  4. Step 4: Simplify right side
    1,638,277.77x = 2,058,963,850,085.56
  5. Step 5: Solve for x
    x = 2,058,963,850,085.56/1,638,277.77
  6. Step 6: Final answer
    x = 1,256,785.57

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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.