Home / 939,832,542.93-1,296,979,232.72-516,446,313.71

Finding the Fourth Proportional to 939,832,542.93, 1,296,979,232.72 and 516,446,313.71

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Solution

The fourth proportional to 939,832,542.93, 1,296,979,232.72 and 516,446,313.71 is: 712,701,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,832,542.93 : 1,296,979,232.72 = 516,446,313.71 : x
  2. Step 2: Convert to fraction form
    939,832,542.93/1,296,979,232.72 = 516,446,313.71/x
  3. Step 3: Cross multiply
    939,832,542.93x = 1,296,979,232.72 × 516,446,313.71
  4. Step 4: Simplify right side
    939,832,542.93x = 669,820,143,697,328,384
  5. Step 5: Solve for x
    x = 669,820,143,697,328,384/939,832,542.93
  6. Step 6: Final answer
    x = 712,701,585.76

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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.