Home / 1,381,325.83-1,906,155.71-761,111.77

Finding the Fourth Proportional to 1,381,325.83, 1,906,155.71 and 761,111.77

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Solution

The fourth proportional to 1,381,325.83, 1,906,155.71 and 761,111.77 is: 1,050,293.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,325.83 : 1,906,155.71 = 761,111.77 : x
  2. Step 2: Convert to fraction form
    1,381,325.83/1,906,155.71 = 761,111.77/x
  3. Step 3: Cross multiply
    1,381,325.83x = 1,906,155.71 × 761,111.77
  4. Step 4: Simplify right side
    1,381,325.83x = 1,450,797,540,970.53
  5. Step 5: Solve for x
    x = 1,450,797,540,970.53/1,381,325.83
  6. Step 6: Final answer
    x = 1,050,293.50

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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.