Home / 1,189,199.04-1,641,095.76-679,912.08

Finding the Fourth Proportional to 1,189,199.04, 1,641,095.76 and 679,912.08

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Solution

The fourth proportional to 1,189,199.04, 1,641,095.76 and 679,912.08 is: 938,279.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,199.04 : 1,641,095.76 = 679,912.08 : x
  2. Step 2: Convert to fraction form
    1,189,199.04/1,641,095.76 = 679,912.08/x
  3. Step 3: Cross multiply
    1,189,199.04x = 1,641,095.76 × 679,912.08
  4. Step 4: Simplify right side
    1,189,199.04x = 1,115,800,831,660.78
  5. Step 5: Solve for x
    x = 1,115,800,831,660.78/1,189,199.04
  6. Step 6: Final answer
    x = 938,279.29

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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.