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Finding the Fourth Proportional to 317,329,168.40, 475,993,752.60 and 220,583,286.80

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Solution

The fourth proportional to 317,329,168.40, 475,993,752.60 and 220,583,286.80 is: 330,874,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,329,168.40 : 475,993,752.60 = 220,583,286.80 : x
  2. Step 2: Convert to fraction form
    317,329,168.40/475,993,752.60 = 220,583,286.80/x
  3. Step 3: Cross multiply
    317,329,168.40x = 475,993,752.60 × 220,583,286.80
  4. Step 4: Simplify right side
    317,329,168.40x = 104,996,266,444,774,064
  5. Step 5: Solve for x
    x = 104,996,266,444,774,064/317,329,168.40
  6. Step 6: Final answer
    x = 330,874,930.20

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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.