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Finding the Fourth Proportional to 3,365,954,411.78, 5,048,931,661.50 and 912,291,314.78

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Solution

The fourth proportional to 3,365,954,411.78, 5,048,931,661.50 and 912,291,314.78 is: 1,368,436,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,365,954,411.78 : 5,048,931,661.50 = 912,291,314.78 : x
  2. Step 2: Convert to fraction form
    3,365,954,411.78/5,048,931,661.50 = 912,291,314.78/x
  3. Step 3: Cross multiply
    3,365,954,411.78x = 5,048,931,661.50 × 912,291,314.78
  4. Step 4: Simplify right side
    3,365,954,411.78x = 4,606,096,503,704,204,800
  5. Step 5: Solve for x
    x = 4,606,096,503,704,204,800/3,365,954,411.78
  6. Step 6: Final answer
    x = 1,368,436,984.05

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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.