Home / 1,287,302.36-1,776,496.74-714,379.64

Finding the Fourth Proportional to 1,287,302.36, 1,776,496.74 and 714,379.64

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Solution

The fourth proportional to 1,287,302.36, 1,776,496.74 and 714,379.64 is: 985,854.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,302.36 : 1,776,496.74 = 714,379.64 : x
  2. Step 2: Convert to fraction form
    1,287,302.36/1,776,496.74 = 714,379.64/x
  3. Step 3: Cross multiply
    1,287,302.36x = 1,776,496.74 × 714,379.64
  4. Step 4: Simplify right side
    1,287,302.36x = 1,269,093,101,582.37
  5. Step 5: Solve for x
    x = 1,269,093,101,582.37/1,287,302.36
  6. Step 6: Final answer
    x = 985,854.72

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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.