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Finding the Fourth Proportional to 778,902.70, 1,093,412.90 and 778,902.70

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Solution

The fourth proportional to 778,902.70, 1,093,412.90 and 778,902.70 is: 1,093,412.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,902.70 : 1,093,412.90 = 778,902.70 : x
  2. Step 2: Convert to fraction form
    778,902.70/1,093,412.90 = 778,902.70/x
  3. Step 3: Cross multiply
    778,902.70x = 1,093,412.90 × 778,902.70
  4. Step 4: Simplify right side
    778,902.70x = 851,662,260,024.83
  5. Step 5: Solve for x
    x = 851,662,260,024.83/778,902.70
  6. Step 6: Final answer
    x = 1,093,412.90

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1.5x scale

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.