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Finding the Fourth Proportional to 1,922,364.64, 2,652,676.16 and 1,062,807.20

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Solution

The fourth proportional to 1,922,364.64, 2,652,676.16 and 1,062,807.20 is: 1,466,570.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922,364.64 : 2,652,676.16 = 1,062,807.20 : x
  2. Step 2: Convert to fraction form
    1,922,364.64/2,652,676.16 = 1,062,807.20/x
  3. Step 3: Cross multiply
    1,922,364.64x = 2,652,676.16 × 1,062,807.20
  4. Step 4: Simplify right side
    1,922,364.64x = 2,819,283,322,116.35
  5. Step 5: Solve for x
    x = 2,819,283,322,116.35/1,922,364.64
  6. Step 6: Final answer
    x = 1,466,570.53

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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.