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Finding the Fourth Proportional to 1,784,430.72, 2,462,448.60 and 968,616.51

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Solution

The fourth proportional to 1,784,430.72, 2,462,448.60 and 968,616.51 is: 1,336,655.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784,430.72 : 2,462,448.60 = 968,616.51 : x
  2. Step 2: Convert to fraction form
    1,784,430.72/2,462,448.60 = 968,616.51/x
  3. Step 3: Cross multiply
    1,784,430.72x = 2,462,448.60 × 968,616.51
  4. Step 4: Simplify right side
    1,784,430.72x = 2,385,168,368,986.39
  5. Step 5: Solve for x
    x = 2,385,168,368,986.39/1,784,430.72
  6. Step 6: Final answer
    x = 1,336,655.07

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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.