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Finding the Fourth Proportional to 344,136.34, 475,080.84 and 215,146.51

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Solution

The fourth proportional to 344,136.34, 475,080.84 and 215,146.51 is: 297,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,136.34 : 475,080.84 = 215,146.51 : x
  2. Step 2: Convert to fraction form
    344,136.34/475,080.84 = 215,146.51/x
  3. Step 3: Cross multiply
    344,136.34x = 475,080.84 × 215,146.51
  4. Step 4: Simplify right side
    344,136.34x = 102,211,984,693.87
  5. Step 5: Solve for x
    x = 102,211,984,693.87/344,136.34
  6. Step 6: Final answer
    x = 297,010.15

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1.5x scale

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.