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Finding the Fourth Proportional to 1,180,724,788.64, 1,629,292,978.32 and 659,108,036

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Solution

The fourth proportional to 1,180,724,788.64, 1,629,292,978.32 and 659,108,036 is: 909,509,231.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,724,788.64 : 1,629,292,978.32 = 659,108,036 : x
  2. Step 2: Convert to fraction form
    1,180,724,788.64/1,629,292,978.32 = 659,108,036/x
  3. Step 3: Cross multiply
    1,180,724,788.64x = 1,629,292,978.32 × 659,108,036
  4. Step 4: Simplify right side
    1,180,724,788.64x = 1,073,880,095,009,085,696
  5. Step 5: Solve for x
    x = 1,073,880,095,009,085,696/1,180,724,788.64
  6. Step 6: Final answer
    x = 909,509,231.40

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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.