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Finding the Fourth Proportional to 683,764.80, 1,027,396.80 and 606,782.40

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Solution

The fourth proportional to 683,764.80, 1,027,396.80 and 606,782.40 is: 911,726.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,764.80 : 1,027,396.80 = 606,782.40 : x
  2. Step 2: Convert to fraction form
    683,764.80/1,027,396.80 = 606,782.40/x
  3. Step 3: Cross multiply
    683,764.80x = 1,027,396.80 × 606,782.40
  4. Step 4: Simplify right side
    683,764.80x = 623,406,296,056.32
  5. Step 5: Solve for x
    x = 623,406,296,056.32/683,764.80
  6. Step 6: Final answer
    x = 911,726.22

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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.