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Finding the Fourth Proportional to 1,764,390.80, 2,646,586.20 and 1,017,894.80

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Solution

The fourth proportional to 1,764,390.80, 2,646,586.20 and 1,017,894.80 is: 1,526,842.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764,390.80 : 2,646,586.20 = 1,017,894.80 : x
  2. Step 2: Convert to fraction form
    1,764,390.80/2,646,586.20 = 1,017,894.80/x
  3. Step 3: Cross multiply
    1,764,390.80x = 2,646,586.20 × 1,017,894.80
  4. Step 4: Simplify right side
    1,764,390.80x = 2,693,946,330,731.76
  5. Step 5: Solve for x
    x = 2,693,946,330,731.76/1,764,390.80
  6. Step 6: Final answer
    x = 1,526,842.20

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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.