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Finding the Third Proportional to 1,391,673.64 and 2,154,848.80

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Solution

The third proportional to 1,391,673.64 and 2,154,848.80 is: 3,336,539.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,673.64 : 2,154,848.80 = 2,154,848.80 : x
  2. Step 2: Convert to fraction form
    1,391,673.64/2,154,848.80 = 2,154,848.80/x
  3. Step 3: Cross multiply
    1,391,673.64x = 2,154,848.80 × 2,154,848.80
  4. Step 4: Simplify right side
    1,391,673.64x = 4,643,373,368,432.94
  5. Step 5: Solve for x
    x = 4,643,373,368,432.94/1,391,673.64
  6. Step 6: Final answer
    x = 3,336,539.00

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.