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Finding the Fourth Proportional to 1,256,962.84, 1,734,645.22 and 684,039.96

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Solution

The fourth proportional to 1,256,962.84, 1,734,645.22 and 684,039.96 is: 943,995.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,962.84 : 1,734,645.22 = 684,039.96 : x
  2. Step 2: Convert to fraction form
    1,256,962.84/1,734,645.22 = 684,039.96/x
  3. Step 3: Cross multiply
    1,256,962.84x = 1,734,645.22 × 684,039.96
  4. Step 4: Simplify right side
    1,256,962.84x = 1,186,566,646,902.99
  5. Step 5: Solve for x
    x = 1,186,566,646,902.99/1,256,962.84
  6. Step 6: Final answer
    x = 943,995.01

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Why These Related Problems?

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