Home / 1,285,386.53-1,928,086.67-386,822.14

Finding the Fourth Proportional to 1,285,386.53, 1,928,086.67 and 386,822.14

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Solution

The fourth proportional to 1,285,386.53, 1,928,086.67 and 386,822.14 is: 580,235.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,386.53 : 1,928,086.67 = 386,822.14 : x
  2. Step 2: Convert to fraction form
    1,285,386.53/1,928,086.67 = 386,822.14/x
  3. Step 3: Cross multiply
    1,285,386.53x = 1,928,086.67 × 386,822.14
  4. Step 4: Simplify right side
    1,285,386.53x = 745,826,607,941.71
  5. Step 5: Solve for x
    x = 745,826,607,941.71/1,285,386.53
  6. Step 6: Final answer
    x = 580,235.28

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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.