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Finding the Fourth Proportional to 628,268,501.79, 866,999,954.75 and 346,037,224.77

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Solution

The fourth proportional to 628,268,501.79, 866,999,954.75 and 346,037,224.77 is: 477,525,544.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,268,501.79 : 866,999,954.75 = 346,037,224.77 : x
  2. Step 2: Convert to fraction form
    628,268,501.79/866,999,954.75 = 346,037,224.77/x
  3. Step 3: Cross multiply
    628,268,501.79x = 866,999,954.75 × 346,037,224.77
  4. Step 4: Simplify right side
    628,268,501.79x = 300,014,258,215,675,392
  5. Step 5: Solve for x
    x = 300,014,258,215,675,392/628,268,501.79
  6. Step 6: Final answer
    x = 477,525,544.19

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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.