Home / 1,221,359.26-1,685,502.80-677,477.34

Finding the Fourth Proportional to 1,221,359.26, 1,685,502.80 and 677,477.34

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Solution

The fourth proportional to 1,221,359.26, 1,685,502.80 and 677,477.34 is: 934,933.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,359.26 : 1,685,502.80 = 677,477.34 : x
  2. Step 2: Convert to fraction form
    1,221,359.26/1,685,502.80 = 677,477.34/x
  3. Step 3: Cross multiply
    1,221,359.26x = 1,685,502.80 × 677,477.34
  4. Step 4: Simplify right side
    1,221,359.26x = 1,141,889,953,506.55
  5. Step 5: Solve for x
    x = 1,141,889,953,506.55/1,221,359.26
  6. Step 6: Final answer
    x = 934,933.72

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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.