Home / 1,328,999.40-1,994,082.30-618,661.80

Finding the Fourth Proportional to 1,328,999.40, 1,994,082.30 and 618,661.80

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Solution

The fourth proportional to 1,328,999.40, 1,994,082.30 and 618,661.80 is: 928,264.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,999.40 : 1,994,082.30 = 618,661.80 : x
  2. Step 2: Convert to fraction form
    1,328,999.40/1,994,082.30 = 618,661.80/x
  3. Step 3: Cross multiply
    1,328,999.40x = 1,994,082.30 × 618,661.80
  4. Step 4: Simplify right side
    1,328,999.40x = 1,233,662,545,066.14
  5. Step 5: Solve for x
    x = 1,233,662,545,066.14/1,328,999.40
  6. Step 6: Final answer
    x = 928,264.19

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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.