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Finding the Fourth Proportional to 3,685,511.70, 5,528,267.55 and 3,685,511.70

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Solution

The fourth proportional to 3,685,511.70, 5,528,267.55 and 3,685,511.70 is: 5,528,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685,511.70 : 5,528,267.55 = 3,685,511.70 : x
  2. Step 2: Convert to fraction form
    3,685,511.70/5,528,267.55 = 3,685,511.70/x
  3. Step 3: Cross multiply
    3,685,511.70x = 5,528,267.55 × 3,685,511.70
  4. Step 4: Simplify right side
    3,685,511.70x = 20,374,494,736,255.34
  5. Step 5: Solve for x
    x = 20,374,494,736,255.34/3,685,511.70
  6. Step 6: Final answer
    x = 5,528,267.55

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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.