Home / 1,277,297,878.35-1,762,667,766.41-712,776,821.24

Finding the Fourth Proportional to 1,277,297,878.35, 1,762,667,766.41 and 712,776,821.24

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Solution

The fourth proportional to 1,277,297,878.35, 1,762,667,766.41 and 712,776,821.24 is: 983,630,168.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,297,878.35 : 1,762,667,766.41 = 712,776,821.24 : x
  2. Step 2: Convert to fraction form
    1,277,297,878.35/1,762,667,766.41 = 712,776,821.24/x
  3. Step 3: Cross multiply
    1,277,297,878.35x = 1,762,667,766.41 × 712,776,821.24
  4. Step 4: Simplify right side
    1,277,297,878.35x = 1,256,388,727,443,930,624
  5. Step 5: Solve for x
    x = 1,256,388,727,443,930,624/1,277,297,878.35
  6. Step 6: Final answer
    x = 983,630,168.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.