Home / 1,216,850.80-1,825,276.20-768,078.40

Finding the Fourth Proportional to 1,216,850.80, 1,825,276.20 and 768,078.40

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Solution

The fourth proportional to 1,216,850.80, 1,825,276.20 and 768,078.40 is: 1,152,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,850.80 : 1,825,276.20 = 768,078.40 : x
  2. Step 2: Convert to fraction form
    1,216,850.80/1,825,276.20 = 768,078.40/x
  3. Step 3: Cross multiply
    1,216,850.80x = 1,825,276.20 × 768,078.40
  4. Step 4: Simplify right side
    1,216,850.80x = 1,401,955,223,254.08
  5. Step 5: Solve for x
    x = 1,401,955,223,254.08/1,216,850.80
  6. Step 6: Final answer
    x = 1,152,117.60

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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.