Home / 1,189,219.96-1,641,071.10-679,955.68

Finding the Fourth Proportional to 1,189,219.96, 1,641,071.10 and 679,955.68

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Solution

The fourth proportional to 1,189,219.96, 1,641,071.10 and 679,955.68 is: 938,308.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,219.96 : 1,641,071.10 = 679,955.68 : x
  2. Step 2: Convert to fraction form
    1,189,219.96/1,641,071.10 = 679,955.68/x
  3. Step 3: Cross multiply
    1,189,219.96x = 1,641,071.10 × 679,955.68
  4. Step 4: Simplify right side
    1,189,219.96x = 1,115,855,615,728.85
  5. Step 5: Solve for x
    x = 1,115,855,615,728.85/1,189,219.96
  6. Step 6: Final answer
    x = 938,308.85

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Double scale
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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.