Home / 1,112,333.93-1,668,500.88-513,117.80

Finding the Fourth Proportional to 1,112,333.93, 1,668,500.88 and 513,117.80

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Solution

The fourth proportional to 1,112,333.93, 1,668,500.88 and 513,117.80 is: 769,676.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,333.93 : 1,668,500.88 = 513,117.80 : x
  2. Step 2: Convert to fraction form
    1,112,333.93/1,668,500.88 = 513,117.80/x
  3. Step 3: Cross multiply
    1,112,333.93x = 1,668,500.88 × 513,117.80
  4. Step 4: Simplify right side
    1,112,333.93x = 856,137,496,833.85
  5. Step 5: Solve for x
    x = 856,137,496,833.85/1,112,333.93
  6. Step 6: Final answer
    x = 769,676.69

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Double scale
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Similar ratio
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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.