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Finding the Fourth Proportional to 1,267,641.63, 1,749,359.23 and 694,669.50

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Solution

The fourth proportional to 1,267,641.63, 1,749,359.23 and 694,669.50 is: 958,651.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,641.63 : 1,749,359.23 = 694,669.50 : x
  2. Step 2: Convert to fraction form
    1,267,641.63/1,749,359.23 = 694,669.50/x
  3. Step 3: Cross multiply
    1,267,641.63x = 1,749,359.23 × 694,669.50
  4. Step 4: Simplify right side
    1,267,641.63x = 1,215,226,499,887.81
  5. Step 5: Solve for x
    x = 1,215,226,499,887.81/1,267,641.63
  6. Step 6: Final answer
    x = 958,651.46

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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.