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Finding the Fourth Proportional to 415,197.87, 573,015.36 and 254,159.34

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Solution

The fourth proportional to 415,197.87, 573,015.36 and 254,159.34 is: 350,765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,197.87 : 573,015.36 = 254,159.34 : x
  2. Step 2: Convert to fraction form
    415,197.87/573,015.36 = 254,159.34/x
  3. Step 3: Cross multiply
    415,197.87x = 573,015.36 × 254,159.34
  4. Step 4: Simplify right side
    415,197.87x = 145,637,205,707.46
  5. Step 5: Solve for x
    x = 145,637,205,707.46/415,197.87
  6. Step 6: Final answer
    x = 350,765.78

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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.