Home / 1,383,439.02-1,908,820.80-839,562.66

Finding the Fourth Proportional to 1,383,439.02, 1,908,820.80 and 839,562.66

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Solution

The fourth proportional to 1,383,439.02, 1,908,820.80 and 839,562.66 is: 1,158,399.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,439.02 : 1,908,820.80 = 839,562.66 : x
  2. Step 2: Convert to fraction form
    1,383,439.02/1,908,820.80 = 839,562.66/x
  3. Step 3: Cross multiply
    1,383,439.02x = 1,908,820.80 × 839,562.66
  4. Step 4: Simplify right side
    1,383,439.02x = 1,602,574,668,311.33
  5. Step 5: Solve for x
    x = 1,602,574,668,311.33/1,383,439.02
  6. Step 6: Final answer
    x = 1,158,399.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.