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Finding the Fourth Proportional to 1,171,059, 1,616,062.56 and 634,515

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Solution

The fourth proportional to 1,171,059, 1,616,062.56 and 634,515 is: 875,631.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,059 : 1,616,062.56 = 634,515 : x
  2. Step 2: Convert to fraction form
    1,171,059/1,616,062.56 = 634,515/x
  3. Step 3: Cross multiply
    1,171,059x = 1,616,062.56 × 634,515
  4. Step 4: Simplify right side
    1,171,059x = 1,025,415,935,258.40
  5. Step 5: Solve for x
    x = 1,025,415,935,258.40/1,171,059
  6. Step 6: Final answer
    x = 875,631.32

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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.