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Finding the Fourth Proportional to 680,704.10, 1,021,056.15 and 680,704.10

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Solution

The fourth proportional to 680,704.10, 1,021,056.15 and 680,704.10 is: 1,021,056.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,704.10 : 1,021,056.15 = 680,704.10 : x
  2. Step 2: Convert to fraction form
    680,704.10/1,021,056.15 = 680,704.10/x
  3. Step 3: Cross multiply
    680,704.10x = 1,021,056.15 × 680,704.10
  4. Step 4: Simplify right side
    680,704.10x = 695,037,107,635.22
  5. Step 5: Solve for x
    x = 695,037,107,635.22/680,704.10
  6. Step 6: Final answer
    x = 1,021,056.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.