Home / 1,189,219.02-1,641,123.36-679,932.06

Finding the Fourth Proportional to 1,189,219.02, 1,641,123.36 and 679,932.06

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Solution

The fourth proportional to 1,189,219.02, 1,641,123.36 and 679,932.06 is: 938,306.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,219.02 : 1,641,123.36 = 679,932.06 : x
  2. Step 2: Convert to fraction form
    1,189,219.02/1,641,123.36 = 679,932.06/x
  3. Step 3: Cross multiply
    1,189,219.02x = 1,641,123.36 × 679,932.06
  4. Step 4: Simplify right side
    1,189,219.02x = 1,115,852,386,878.92
  5. Step 5: Solve for x
    x = 1,115,852,386,878.92/1,189,219.02
  6. Step 6: Final answer
    x = 938,306.88

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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.