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Finding the Fourth Proportional to 1,404,487,422, 1,937,457,803.88 and 868,467,718.80

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Solution

The fourth proportional to 1,404,487,422, 1,937,457,803.88 and 868,467,718.80 is: 1,198,031,063.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,487,422 : 1,937,457,803.88 = 868,467,718.80 : x
  2. Step 2: Convert to fraction form
    1,404,487,422/1,937,457,803.88 = 868,467,718.80/x
  3. Step 3: Cross multiply
    1,404,487,422x = 1,937,457,803.88 × 868,467,718.80
  4. Step 4: Simplify right side
    1,404,487,422x = 1,682,619,559,206,921,472
  5. Step 5: Solve for x
    x = 1,682,619,559,206,921,472/1,404,487,422
  6. Step 6: Final answer
    x = 1,198,031,063.04

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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.