Home / 519,436,500,519.06-716,822,355,183.66-287,949,433,202.76

Finding the Fourth Proportional to 519,436,500,519.06, 716,822,355,183.66 and 287,949,433,202.76

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Solution

The fourth proportional to 519,436,500,519.06, 716,822,355,183.66 and 287,949,433,202.76 is: 397,370,209,209.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,436,500,519.06 : 716,822,355,183.66 = 287,949,433,202.76 : x
  2. Step 2: Convert to fraction form
    519,436,500,519.06/716,822,355,183.66 = 287,949,433,202.76/x
  3. Step 3: Cross multiply
    519,436,500,519.06x = 716,822,355,183.66 × 287,949,433,202.76
  4. Step 4: Simplify right side
    519,436,500,519.06x = 206,408,590,882,202,428,899,328
  5. Step 5: Solve for x
    x = 206,408,590,882,202,428,899,328/519,436,500,519.06
  6. Step 6: Final answer
    x = 397,370,209,209.29

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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.