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Finding the Fourth Proportional to 1,397,564.93, 1,928,594.93 and 785,743.58

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Solution

The fourth proportional to 1,397,564.93, 1,928,594.93 and 785,743.58 is: 1,084,301.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,564.93 : 1,928,594.93 = 785,743.58 : x
  2. Step 2: Convert to fraction form
    1,397,564.93/1,928,594.93 = 785,743.58/x
  3. Step 3: Cross multiply
    1,397,564.93x = 1,928,594.93 × 785,743.58
  4. Step 4: Simplify right side
    1,397,564.93x = 1,515,381,071,096.36
  5. Step 5: Solve for x
    x = 1,515,381,071,096.36/1,397,564.93
  6. Step 6: Final answer
    x = 1,084,301.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.