Home / 1,211,235.12-1,816,902.90-453,000.60

Finding the Fourth Proportional to 1,211,235.12, 1,816,902.90 and 453,000.60

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Solution

The fourth proportional to 1,211,235.12, 1,816,902.90 and 453,000.60 is: 679,519.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,235.12 : 1,816,902.90 = 453,000.60 : x
  2. Step 2: Convert to fraction form
    1,211,235.12/1,816,902.90 = 453,000.60/x
  3. Step 3: Cross multiply
    1,211,235.12x = 1,816,902.90 × 453,000.60
  4. Step 4: Simplify right side
    1,211,235.12x = 823,058,103,841.74
  5. Step 5: Solve for x
    x = 823,058,103,841.74/1,211,235.12
  6. Step 6: Final answer
    x = 679,519.68

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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.