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Finding the Fourth Proportional to 472,764.21, 655,174.65 and 463,792.65

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Solution

The fourth proportional to 472,764.21, 655,174.65 and 463,792.65 is: 642,741.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,764.21 : 655,174.65 = 463,792.65 : x
  2. Step 2: Convert to fraction form
    472,764.21/655,174.65 = 463,792.65/x
  3. Step 3: Cross multiply
    472,764.21x = 655,174.65 × 463,792.65
  4. Step 4: Simplify right side
    472,764.21x = 303,865,187,136.32
  5. Step 5: Solve for x
    x = 303,865,187,136.32/472,764.21
  6. Step 6: Final answer
    x = 642,741.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.