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Finding the Fourth Proportional to 568,145.40, 785,080.01 and 540,468.91

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Solution

The fourth proportional to 568,145.40, 785,080.01 and 540,468.91 is: 746,835.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,145.40 : 785,080.01 = 540,468.91 : x
  2. Step 2: Convert to fraction form
    568,145.40/785,080.01 = 540,468.91/x
  3. Step 3: Cross multiply
    568,145.40x = 785,080.01 × 540,468.91
  4. Step 4: Simplify right side
    568,145.40x = 424,311,337,267.49
  5. Step 5: Solve for x
    x = 424,311,337,267.49/568,145.40
  6. Step 6: Final answer
    x = 746,835.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.