Home / 1,395,355.80-1,925,566.47-783,513.39

Finding the Fourth Proportional to 1,395,355.80, 1,925,566.47 and 783,513.39

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Solution

The fourth proportional to 1,395,355.80, 1,925,566.47 and 783,513.39 is: 1,081,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,355.80 : 1,925,566.47 = 783,513.39 : x
  2. Step 2: Convert to fraction form
    1,395,355.80/1,925,566.47 = 783,513.39/x
  3. Step 3: Cross multiply
    1,395,355.80x = 1,925,566.47 × 783,513.39
  4. Step 4: Simplify right side
    1,395,355.80x = 1,508,707,112,580.03
  5. Step 5: Solve for x
    x = 1,508,707,112,580.03/1,395,355.80
  6. Step 6: Final answer
    x = 1,081,234.70

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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.