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Finding the Fourth Proportional to 1,039,512.60, 1,451,774.70 and 1,039,512.60

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Solution

The fourth proportional to 1,039,512.60, 1,451,774.70 and 1,039,512.60 is: 1,451,774.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,512.60 : 1,451,774.70 = 1,039,512.60 : x
  2. Step 2: Convert to fraction form
    1,039,512.60/1,451,774.70 = 1,039,512.60/x
  3. Step 3: Cross multiply
    1,039,512.60x = 1,451,774.70 × 1,039,512.60
  4. Step 4: Simplify right side
    1,039,512.60x = 1,509,138,093,011.22
  5. Step 5: Solve for x
    x = 1,509,138,093,011.22/1,039,512.60
  6. Step 6: Final answer
    x = 1,451,774.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.