Home / 1,919,202.29-2,878,605.64-639,671.51

Finding the Fourth Proportional to 1,919,202.29, 2,878,605.64 and 639,671.51

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Solution

The fourth proportional to 1,919,202.29, 2,878,605.64 and 639,671.51 is: 959,441.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,202.29 : 2,878,605.64 = 639,671.51 : x
  2. Step 2: Convert to fraction form
    1,919,202.29/2,878,605.64 = 639,671.51/x
  3. Step 3: Cross multiply
    1,919,202.29x = 2,878,605.64 × 639,671.51
  4. Step 4: Simplify right side
    1,919,202.29x = 1,841,362,024,429.42
  5. Step 5: Solve for x
    x = 1,841,362,024,429.42/1,919,202.29
  6. Step 6: Final answer
    x = 959,441.34

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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.