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Finding the Fourth Proportional to 1,173,786.80, 1,760,809.80 and 374,932.40

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Solution

The fourth proportional to 1,173,786.80, 1,760,809.80 and 374,932.40 is: 562,440.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,786.80 : 1,760,809.80 = 374,932.40 : x
  2. Step 2: Convert to fraction form
    1,173,786.80/1,760,809.80 = 374,932.40/x
  3. Step 3: Cross multiply
    1,173,786.80x = 1,760,809.80 × 374,932.40
  4. Step 4: Simplify right side
    1,173,786.80x = 660,184,644,257.52
  5. Step 5: Solve for x
    x = 660,184,644,257.52/1,173,786.80
  6. Step 6: Final answer
    x = 562,440.00

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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.