Home / 1,353,417.20-1,867,585.56-809,442.80

Finding the Fourth Proportional to 1,353,417.20, 1,867,585.56 and 809,442.80

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Solution

The fourth proportional to 1,353,417.20, 1,867,585.56 and 809,442.80 is: 1,116,953.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,417.20 : 1,867,585.56 = 809,442.80 : x
  2. Step 2: Convert to fraction form
    1,353,417.20/1,867,585.56 = 809,442.80/x
  3. Step 3: Cross multiply
    1,353,417.20x = 1,867,585.56 × 809,442.80
  4. Step 4: Simplify right side
    1,353,417.20x = 1,511,703,684,925.97
  5. Step 5: Solve for x
    x = 1,511,703,684,925.97/1,353,417.20
  6. Step 6: Final answer
    x = 1,116,953.21

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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.