Home / 1,243,397.78-1,715,838.93-699,544.34

Finding the Fourth Proportional to 1,243,397.78, 1,715,838.93 and 699,544.34

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Solution

The fourth proportional to 1,243,397.78, 1,715,838.93 and 699,544.34 is: 965,343.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,397.78 : 1,715,838.93 = 699,544.34 : x
  2. Step 2: Convert to fraction form
    1,243,397.78/1,715,838.93 = 699,544.34/x
  3. Step 3: Cross multiply
    1,243,397.78x = 1,715,838.93 × 699,544.34
  4. Step 4: Simplify right side
    1,243,397.78x = 1,200,305,411,833.16
  5. Step 5: Solve for x
    x = 1,200,305,411,833.16/1,243,397.78
  6. Step 6: Final answer
    x = 965,343.06

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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.