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Finding the Fourth Proportional to 1,317,324, 1,817,908.80 and 713,712

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Solution

The fourth proportional to 1,317,324, 1,817,908.80 and 713,712 is: 984,923.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,324 : 1,817,908.80 = 713,712 : x
  2. Step 2: Convert to fraction form
    1,317,324/1,817,908.80 = 713,712/x
  3. Step 3: Cross multiply
    1,317,324x = 1,817,908.80 × 713,712
  4. Step 4: Simplify right side
    1,317,324x = 1,297,463,325,465.60
  5. Step 5: Solve for x
    x = 1,297,463,325,465.60/1,317,324
  6. Step 6: Final answer
    x = 984,923.47

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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.