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Finding the Fourth Proportional to 665,872.30, 997,756.53 and 540,600.94

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Solution

The fourth proportional to 665,872.30, 997,756.53 and 540,600.94 is: 810,047.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,872.30 : 997,756.53 = 540,600.94 : x
  2. Step 2: Convert to fraction form
    665,872.30/997,756.53 = 540,600.94/x
  3. Step 3: Cross multiply
    665,872.30x = 997,756.53 × 540,600.94
  4. Step 4: Simplify right side
    665,872.30x = 539,388,118,009.14
  5. Step 5: Solve for x
    x = 539,388,118,009.14/665,872.30
  6. Step 6: Final answer
    x = 810,047.39

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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.