Home / 1,047,606.96-1,445,318.88-685,237.76

Finding the Fourth Proportional to 1,047,606.96, 1,445,318.88 and 685,237.76

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Solution

The fourth proportional to 1,047,606.96, 1,445,318.88 and 685,237.76 is: 945,380.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,606.96 : 1,445,318.88 = 685,237.76 : x
  2. Step 2: Convert to fraction form
    1,047,606.96/1,445,318.88 = 685,237.76/x
  3. Step 3: Cross multiply
    1,047,606.96x = 1,445,318.88 × 685,237.76
  4. Step 4: Simplify right side
    1,047,606.96x = 990,387,071,816.91
  5. Step 5: Solve for x
    x = 990,387,071,816.91/1,047,606.96
  6. Step 6: Final answer
    x = 945,380.39

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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.