Home / 1,085,658.80-1,630,043.40-613,266.80

Finding the Fourth Proportional to 1,085,658.80, 1,630,043.40 and 613,266.80

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Solution

The fourth proportional to 1,085,658.80, 1,630,043.40 and 613,266.80 is: 920,778.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,658.80 : 1,630,043.40 = 613,266.80 : x
  2. Step 2: Convert to fraction form
    1,085,658.80/1,630,043.40 = 613,266.80/x
  3. Step 3: Cross multiply
    1,085,658.80x = 1,630,043.40 × 613,266.80
  4. Step 4: Simplify right side
    1,085,658.80x = 999,651,499,779.12
  5. Step 5: Solve for x
    x = 999,651,499,779.12/1,085,658.80
  6. Step 6: Final answer
    x = 920,778.70

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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.