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Finding the Fourth Proportional to 1,703,596, 2,555,826 and 638,641.12

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Solution

The fourth proportional to 1,703,596, 2,555,826 and 638,641.12 is: 958,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703,596 : 2,555,826 = 638,641.12 : x
  2. Step 2: Convert to fraction form
    1,703,596/2,555,826 = 638,641.12/x
  3. Step 3: Cross multiply
    1,703,596x = 2,555,826 × 638,641.12
  4. Step 4: Simplify right side
    1,703,596x = 1,632,255,579,165.12
  5. Step 5: Solve for x
    x = 1,632,255,579,165.12/1,703,596
  6. Step 6: Final answer
    x = 958,123.63

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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.