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Finding the Fourth Proportional to 986,251.03, 1,361,253.06 and 578,484.27

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Solution

The fourth proportional to 986,251.03, 1,361,253.06 and 578,484.27 is: 798,441.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,251.03 : 1,361,253.06 = 578,484.27 : x
  2. Step 2: Convert to fraction form
    986,251.03/1,361,253.06 = 578,484.27/x
  3. Step 3: Cross multiply
    986,251.03x = 1,361,253.06 × 578,484.27
  4. Step 4: Simplify right side
    986,251.03x = 787,463,482,699.37
  5. Step 5: Solve for x
    x = 787,463,482,699.37/986,251.03
  6. Step 6: Final answer
    x = 798,441.23

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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.