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Finding the Fourth Proportional to 1,218,579, 1,681,696.79 and 735,133.77

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Solution

The fourth proportional to 1,218,579, 1,681,696.79 and 735,133.77 is: 1,014,519.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,579 : 1,681,696.79 = 735,133.77 : x
  2. Step 2: Convert to fraction form
    1,218,579/1,681,696.79 = 735,133.77/x
  3. Step 3: Cross multiply
    1,218,579x = 1,681,696.79 × 735,133.77
  4. Step 4: Simplify right side
    1,218,579x = 1,236,272,106,617.04
  5. Step 5: Solve for x
    x = 1,236,272,106,617.04/1,218,579
  6. Step 6: Final answer
    x = 1,014,519.46

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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.