Home / 1,688,718.98-2,533,083.61-409,321.43

Finding the Fourth Proportional to 1,688,718.98, 2,533,083.61 and 409,321.43

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Solution

The fourth proportional to 1,688,718.98, 2,533,083.61 and 409,321.43 is: 613,983.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,718.98 : 2,533,083.61 = 409,321.43 : x
  2. Step 2: Convert to fraction form
    1,688,718.98/2,533,083.61 = 409,321.43/x
  3. Step 3: Cross multiply
    1,688,718.98x = 2,533,083.61 × 409,321.43
  4. Step 4: Simplify right side
    1,688,718.98x = 1,036,845,396,159.50
  5. Step 5: Solve for x
    x = 1,036,845,396,159.50/1,688,718.98
  6. Step 6: Final answer
    x = 613,983.38

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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.