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Finding the Fourth Proportional to 657,107.40, 985,661.10 and 568,533.90

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Solution

The fourth proportional to 657,107.40, 985,661.10 and 568,533.90 is: 852,800.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,107.40 : 985,661.10 = 568,533.90 : x
  2. Step 2: Convert to fraction form
    657,107.40/985,661.10 = 568,533.90/x
  3. Step 3: Cross multiply
    657,107.40x = 985,661.10 × 568,533.90
  4. Step 4: Simplify right side
    657,107.40x = 560,381,749,261.29
  5. Step 5: Solve for x
    x = 560,381,749,261.29/657,107.40
  6. Step 6: Final answer
    x = 852,800.85

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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.