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Finding the Fourth Proportional to 673,764,948.70, 1,010,647,423.05 and 411,870,823.90

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Solution

The fourth proportional to 673,764,948.70, 1,010,647,423.05 and 411,870,823.90 is: 617,806,235.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,764,948.70 : 1,010,647,423.05 = 411,870,823.90 : x
  2. Step 2: Convert to fraction form
    673,764,948.70/1,010,647,423.05 = 411,870,823.90/x
  3. Step 3: Cross multiply
    673,764,948.70x = 1,010,647,423.05 × 411,870,823.90
  4. Step 4: Simplify right side
    673,764,948.70x = 416,256,186,804,015,296
  5. Step 5: Solve for x
    x = 416,256,186,804,015,296/673,764,948.70
  6. Step 6: Final answer
    x = 617,806,235.85

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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.