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Finding the Fourth Proportional to 922,807.80, 1,384,211.70 and 910,366.20

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Solution

The fourth proportional to 922,807.80, 1,384,211.70 and 910,366.20 is: 1,365,549.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,807.80 : 1,384,211.70 = 910,366.20 : x
  2. Step 2: Convert to fraction form
    922,807.80/1,384,211.70 = 910,366.20/x
  3. Step 3: Cross multiply
    922,807.80x = 1,384,211.70 × 910,366.20
  4. Step 4: Simplify right side
    922,807.80x = 1,260,139,545,324.54
  5. Step 5: Solve for x
    x = 1,260,139,545,324.54/922,807.80
  6. Step 6: Final answer
    x = 1,365,549.30

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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.