Home / 1,430,121.64-1,973,601.93-785,555.33

Finding the Fourth Proportional to 1,430,121.64, 1,973,601.93 and 785,555.33

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Solution

The fourth proportional to 1,430,121.64, 1,973,601.93 and 785,555.33 is: 1,084,085.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,121.64 : 1,973,601.93 = 785,555.33 : x
  2. Step 2: Convert to fraction form
    1,430,121.64/1,973,601.93 = 785,555.33/x
  3. Step 3: Cross multiply
    1,430,121.64x = 1,973,601.93 × 785,555.33
  4. Step 4: Simplify right side
    1,430,121.64x = 1,550,373,515,409.79
  5. Step 5: Solve for x
    x = 1,550,373,515,409.79/1,430,121.64
  6. Step 6: Final answer
    x = 1,084,085.07

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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.