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Finding the Fourth Proportional to 1,256,959.84, 1,734,641.04 and 684,037

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Solution

The fourth proportional to 1,256,959.84, 1,734,641.04 and 684,037 is: 943,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,959.84 : 1,734,641.04 = 684,037 : x
  2. Step 2: Convert to fraction form
    1,256,959.84/1,734,641.04 = 684,037/x
  3. Step 3: Cross multiply
    1,256,959.84x = 1,734,641.04 × 684,037
  4. Step 4: Simplify right side
    1,256,959.84x = 1,186,558,653,078.48
  5. Step 5: Solve for x
    x = 1,186,558,653,078.48/1,256,959.84
  6. Step 6: Final answer
    x = 943,990.90

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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.