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Finding the Fourth Proportional to 605,042.10, 907,563.15 and 577,485.90

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Solution

The fourth proportional to 605,042.10, 907,563.15 and 577,485.90 is: 866,228.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,042.10 : 907,563.15 = 577,485.90 : x
  2. Step 2: Convert to fraction form
    605,042.10/907,563.15 = 577,485.90/x
  3. Step 3: Cross multiply
    605,042.10x = 907,563.15 × 577,485.90
  4. Step 4: Simplify right side
    605,042.10x = 524,104,922,484.59
  5. Step 5: Solve for x
    x = 524,104,922,484.59/605,042.10
  6. Step 6: Final answer
    x = 866,228.85

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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.