Home / 1,400,511.40-2,100,767.10-389,631.40

Finding the Fourth Proportional to 1,400,511.40, 2,100,767.10 and 389,631.40

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Solution

The fourth proportional to 1,400,511.40, 2,100,767.10 and 389,631.40 is: 584,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,511.40 : 2,100,767.10 = 389,631.40 : x
  2. Step 2: Convert to fraction form
    1,400,511.40/2,100,767.10 = 389,631.40/x
  3. Step 3: Cross multiply
    1,400,511.40x = 2,100,767.10 × 389,631.40
  4. Step 4: Simplify right side
    1,400,511.40x = 818,524,826,246.94
  5. Step 5: Solve for x
    x = 818,524,826,246.94/1,400,511.40
  6. Step 6: Final answer
    x = 584,447.10

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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.