Home / 914,332,908.51-1,261,884,087.54-512,555,173.38

Finding the Fourth Proportional to 914,332,908.51, 1,261,884,087.54 and 512,555,173.38

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Solution

The fourth proportional to 914,332,908.51, 1,261,884,087.54 and 512,555,173.38 is: 707,384,817.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,332,908.51 : 1,261,884,087.54 = 512,555,173.38 : x
  2. Step 2: Convert to fraction form
    914,332,908.51/1,261,884,087.54 = 512,555,173.38/x
  3. Step 3: Cross multiply
    914,332,908.51x = 1,261,884,087.54 × 512,555,173.38
  4. Step 4: Simplify right side
    914,332,908.51x = 646,785,217,274,527,744
  5. Step 5: Solve for x
    x = 646,785,217,274,527,744/914,332,908.51
  6. Step 6: Final answer
    x = 707,384,817.12

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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.