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Finding the Fourth Proportional to 867,183.40, 1,300,767.90 and 677,802.95

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Solution

The fourth proportional to 867,183.40, 1,300,767.90 and 677,802.95 is: 1,016,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,183.40 : 1,300,767.90 = 677,802.95 : x
  2. Step 2: Convert to fraction form
    867,183.40/1,300,767.90 = 677,802.95/x
  3. Step 3: Cross multiply
    867,183.40x = 1,300,767.90 × 677,802.95
  4. Step 4: Simplify right side
    867,183.40x = 881,664,319,885.31
  5. Step 5: Solve for x
    x = 881,664,319,885.31/867,183.40
  6. Step 6: Final answer
    x = 1,016,698.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.