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Finding the Fourth Proportional to 867,694,786.74, 1,197,785,250.90 and 585,819,087.12

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Solution

The fourth proportional to 867,694,786.74, 1,197,785,250.90 and 585,819,087.12 is: 808,677,743.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,694,786.74 : 1,197,785,250.90 = 585,819,087.12 : x
  2. Step 2: Convert to fraction form
    867,694,786.74/1,197,785,250.90 = 585,819,087.12/x
  3. Step 3: Cross multiply
    867,694,786.74x = 1,197,785,250.90 × 585,819,087.12
  4. Step 4: Simplify right side
    867,694,786.74x = 701,685,462,248,038,272
  5. Step 5: Solve for x
    x = 701,685,462,248,038,272/867,694,786.74
  6. Step 6: Final answer
    x = 808,677,743.57

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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.