Home / 1,191,678.74-1,644,527.36-647,815.58

Finding the Fourth Proportional to 1,191,678.74, 1,644,527.36 and 647,815.58

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Solution

The fourth proportional to 1,191,678.74, 1,644,527.36 and 647,815.58 is: 893,991.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,678.74 : 1,644,527.36 = 647,815.58 : x
  2. Step 2: Convert to fraction form
    1,191,678.74/1,644,527.36 = 647,815.58/x
  3. Step 3: Cross multiply
    1,191,678.74x = 1,644,527.36 × 647,815.58
  4. Step 4: Simplify right side
    1,191,678.74x = 1,065,350,445,544.27
  5. Step 5: Solve for x
    x = 1,065,350,445,544.27/1,191,678.74
  6. Step 6: Final answer
    x = 893,991.32

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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.