Home / 806,412.80-1,209,619.20-526,246.40

Finding the Fourth Proportional to 806,412.80, 1,209,619.20 and 526,246.40

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Solution

The fourth proportional to 806,412.80, 1,209,619.20 and 526,246.40 is: 789,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,412.80 : 1,209,619.20 = 526,246.40 : x
  2. Step 2: Convert to fraction form
    806,412.80/1,209,619.20 = 526,246.40/x
  3. Step 3: Cross multiply
    806,412.80x = 1,209,619.20 × 526,246.40
  4. Step 4: Simplify right side
    806,412.80x = 636,557,749,370.88
  5. Step 5: Solve for x
    x = 636,557,749,370.88/806,412.80
  6. Step 6: Final answer
    x = 789,369.60

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1.5x scale

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.