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Finding the Fourth Proportional to 696,809.80, 1,045,214.70 and 696,809.80

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Solution

The fourth proportional to 696,809.80, 1,045,214.70 and 696,809.80 is: 1,045,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,809.80 : 1,045,214.70 = 696,809.80 : x
  2. Step 2: Convert to fraction form
    696,809.80/1,045,214.70 = 696,809.80/x
  3. Step 3: Cross multiply
    696,809.80x = 1,045,214.70 × 696,809.80
  4. Step 4: Simplify right side
    696,809.80x = 728,315,846,064.06
  5. Step 5: Solve for x
    x = 728,315,846,064.06/696,809.80
  6. Step 6: Final answer
    x = 1,045,214.70

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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.