Home / 1,296,563.39-1,789,210.52-715,774.06

Finding the Fourth Proportional to 1,296,563.39, 1,789,210.52 and 715,774.06

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Solution

The fourth proportional to 1,296,563.39, 1,789,210.52 and 715,774.06 is: 987,742.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,563.39 : 1,789,210.52 = 715,774.06 : x
  2. Step 2: Convert to fraction form
    1,296,563.39/1,789,210.52 = 715,774.06/x
  3. Step 3: Cross multiply
    1,296,563.39x = 1,789,210.52 × 715,774.06
  4. Step 4: Simplify right side
    1,296,563.39x = 1,280,670,480,778.70
  5. Step 5: Solve for x
    x = 1,280,670,480,778.70/1,296,563.39
  6. Step 6: Final answer
    x = 987,742.28

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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.