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Finding the Fourth Proportional to 605,869.20, 908,803.80 and 605,869.20

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Solution

The fourth proportional to 605,869.20, 908,803.80 and 605,869.20 is: 908,803.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,869.20 : 908,803.80 = 605,869.20 : x
  2. Step 2: Convert to fraction form
    605,869.20/908,803.80 = 605,869.20/x
  3. Step 3: Cross multiply
    605,869.20x = 908,803.80 × 605,869.20
  4. Step 4: Simplify right side
    605,869.20x = 550,616,231,262.96
  5. Step 5: Solve for x
    x = 550,616,231,262.96/605,869.20
  6. Step 6: Final answer
    x = 908,803.80

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1.5x scale

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.