Home / 1,261,510.88-1,892,567.60-420,069.92

Finding the Fourth Proportional to 1,261,510.88, 1,892,567.60 and 420,069.92

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Solution

The fourth proportional to 1,261,510.88, 1,892,567.60 and 420,069.92 is: 630,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,510.88 : 1,892,567.60 = 420,069.92 : x
  2. Step 2: Convert to fraction form
    1,261,510.88/1,892,567.60 = 420,069.92/x
  3. Step 3: Cross multiply
    1,261,510.88x = 1,892,567.60 × 420,069.92
  4. Step 4: Simplify right side
    1,261,510.88x = 795,010,720,326.59
  5. Step 5: Solve for x
    x = 795,010,720,326.59/1,261,510.88
  6. Step 6: Final answer
    x = 630,205.20

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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.