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Finding the Fourth Proportional to 1,971,396.63, 2,955,823.56 and 773,440.02

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Solution

The fourth proportional to 1,971,396.63, 2,955,823.56 and 773,440.02 is: 1,159,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,396.63 : 2,955,823.56 = 773,440.02 : x
  2. Step 2: Convert to fraction form
    1,971,396.63/2,955,823.56 = 773,440.02/x
  3. Step 3: Cross multiply
    1,971,396.63x = 2,955,823.56 × 773,440.02
  4. Step 4: Simplify right side
    1,971,396.63x = 2,286,152,233,362.87
  5. Step 5: Solve for x
    x = 2,286,152,233,362.87/1,971,396.63
  6. Step 6: Final answer
    x = 1,159,661.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.