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Finding the Fourth Proportional to 1,392,529.50, 1,922,320.22 and 877,041

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Solution

The fourth proportional to 1,392,529.50, 1,922,320.22 and 877,041 is: 1,210,713.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,529.50 : 1,922,320.22 = 877,041 : x
  2. Step 2: Convert to fraction form
    1,392,529.50/1,922,320.22 = 877,041/x
  3. Step 3: Cross multiply
    1,392,529.50x = 1,922,320.22 × 877,041
  4. Step 4: Simplify right side
    1,392,529.50x = 1,685,953,643,683.82
  5. Step 5: Solve for x
    x = 1,685,953,643,683.82/1,392,529.50
  6. Step 6: Final answer
    x = 1,210,713.05

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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.