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Finding the Fourth Proportional to 886,853.60, 1,330,280.40 and 818,424.80

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Solution

The fourth proportional to 886,853.60, 1,330,280.40 and 818,424.80 is: 1,227,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,853.60 : 1,330,280.40 = 818,424.80 : x
  2. Step 2: Convert to fraction form
    886,853.60/1,330,280.40 = 818,424.80/x
  3. Step 3: Cross multiply
    886,853.60x = 1,330,280.40 × 818,424.80
  4. Step 4: Simplify right side
    886,853.60x = 1,088,734,470,313.92
  5. Step 5: Solve for x
    x = 1,088,734,470,313.92/886,853.60
  6. Step 6: Final answer
    x = 1,227,637.20

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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.