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Finding the Fourth Proportional to 605,219.10, 907,828.65 and 539,900.70

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Solution

The fourth proportional to 605,219.10, 907,828.65 and 539,900.70 is: 809,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,219.10 : 907,828.65 = 539,900.70 : x
  2. Step 2: Convert to fraction form
    605,219.10/907,828.65 = 539,900.70/x
  3. Step 3: Cross multiply
    605,219.10x = 907,828.65 × 539,900.70
  4. Step 4: Simplify right side
    605,219.10x = 490,137,323,615.06
  5. Step 5: Solve for x
    x = 490,137,323,615.06/605,219.10
  6. Step 6: Final answer
    x = 809,851.05

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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.