Home / 1,299,364.40-1,793,134.80-718,557.51

Finding the Fourth Proportional to 1,299,364.40, 1,793,134.80 and 718,557.51

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Solution

The fourth proportional to 1,299,364.40, 1,793,134.80 and 718,557.51 is: 991,615.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,364.40 : 1,793,134.80 = 718,557.51 : x
  2. Step 2: Convert to fraction form
    1,299,364.40/1,793,134.80 = 718,557.51/x
  3. Step 3: Cross multiply
    1,299,364.40x = 1,793,134.80 × 718,557.51
  4. Step 4: Simplify right side
    1,299,364.40x = 1,288,470,483,706.60
  5. Step 5: Solve for x
    x = 1,288,470,483,706.60/1,299,364.40
  6. Step 6: Final answer
    x = 991,615.96

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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.