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Finding the Fourth Proportional to 701,313,890.72, 967,814,303.00 and 388,061,307.68

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Solution

The fourth proportional to 701,313,890.72, 967,814,303.00 and 388,061,307.68 is: 535,525,231.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,313,890.72 : 967,814,303.00 = 388,061,307.68 : x
  2. Step 2: Convert to fraction form
    701,313,890.72/967,814,303.00 = 388,061,307.68/x
  3. Step 3: Cross multiply
    701,313,890.72x = 967,814,303.00 × 388,061,307.68
  4. Step 4: Simplify right side
    701,313,890.72x = 375,571,284,006,808,384
  5. Step 5: Solve for x
    x = 375,571,284,006,808,384/701,313,890.72
  6. Step 6: Final answer
    x = 535,525,231.97

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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.