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Finding the Fourth Proportional to 1,948,502.72, 2,922,006.44 and 668,871.66

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Solution

The fourth proportional to 1,948,502.72, 2,922,006.44 and 668,871.66 is: 1,003,050.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948,502.72 : 2,922,006.44 = 668,871.66 : x
  2. Step 2: Convert to fraction form
    1,948,502.72/2,922,006.44 = 668,871.66/x
  3. Step 3: Cross multiply
    1,948,502.72x = 2,922,006.44 × 668,871.66
  4. Step 4: Simplify right side
    1,948,502.72x = 1,954,447,298,053.49
  5. Step 5: Solve for x
    x = 1,954,447,298,053.49/1,948,502.72
  6. Step 6: Final answer
    x = 1,003,050.84

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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.