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Finding the Fourth Proportional to 1,187,929.04, 1,637,756.22 and 943,724.06

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Solution

The fourth proportional to 1,187,929.04, 1,637,756.22 and 943,724.06 is: 1,301,079.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,929.04 : 1,637,756.22 = 943,724.06 : x
  2. Step 2: Convert to fraction form
    1,187,929.04/1,637,756.22 = 943,724.06/x
  3. Step 3: Cross multiply
    1,187,929.04x = 1,637,756.22 × 943,724.06
  4. Step 4: Simplify right side
    1,187,929.04x = 1,545,589,949,228.65
  5. Step 5: Solve for x
    x = 1,545,589,949,228.65/1,187,929.04
  6. Step 6: Final answer
    x = 1,301,079.36

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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.