Home / 1,900,609.40-2,850,943.26-638,447.96

Finding the Fourth Proportional to 1,900,609.40, 2,850,943.26 and 638,447.96

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Solution

The fourth proportional to 1,900,609.40, 2,850,943.26 and 638,447.96 is: 957,681.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900,609.40 : 2,850,943.26 = 638,447.96 : x
  2. Step 2: Convert to fraction form
    1,900,609.40/2,850,943.26 = 638,447.96/x
  3. Step 3: Cross multiply
    1,900,609.40x = 2,850,943.26 × 638,447.96
  4. Step 4: Simplify right side
    1,900,609.40x = 1,820,178,908,422.75
  5. Step 5: Solve for x
    x = 1,820,178,908,422.75/1,900,609.40
  6. Step 6: Final answer
    x = 957,681.74

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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.