Home / 3,128,711.76-4,317,683.52-2,041,678.80

Finding the Fourth Proportional to 3,128,711.76, 4,317,683.52 and 2,041,678.80

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Solution

The fourth proportional to 3,128,711.76, 4,317,683.52 and 2,041,678.80 is: 2,817,556.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,711.76 : 4,317,683.52 = 2,041,678.80 : x
  2. Step 2: Convert to fraction form
    3,128,711.76/4,317,683.52 = 2,041,678.80/x
  3. Step 3: Cross multiply
    3,128,711.76x = 4,317,683.52 × 2,041,678.80
  4. Step 4: Simplify right side
    3,128,711.76x = 8,815,322,907,893.38
  5. Step 5: Solve for x
    x = 8,815,322,907,893.38/3,128,711.76
  6. Step 6: Final answer
    x = 2,817,556.74

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Double scale
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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.