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Finding the Fourth Proportional to 1,963,896.04, 2,945,721.71 and 939,953.57

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Solution

The fourth proportional to 1,963,896.04, 2,945,721.71 and 939,953.57 is: 1,409,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963,896.04 : 2,945,721.71 = 939,953.57 : x
  2. Step 2: Convert to fraction form
    1,963,896.04/2,945,721.71 = 939,953.57/x
  3. Step 3: Cross multiply
    1,963,896.04x = 2,945,721.71 × 939,953.57
  4. Step 4: Simplify right side
    1,963,896.04x = 2,768,841,637,541.00
  5. Step 5: Solve for x
    x = 2,768,841,637,541.00/1,963,896.04
  6. Step 6: Final answer
    x = 1,409,871.80

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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.