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Finding the Fourth Proportional to 475,075.92, 655,422.36 and 271,138.16

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Solution

The fourth proportional to 475,075.92, 655,422.36 and 271,138.16 is: 374,066.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,075.92 : 655,422.36 = 271,138.16 : x
  2. Step 2: Convert to fraction form
    475,075.92/655,422.36 = 271,138.16/x
  3. Step 3: Cross multiply
    475,075.92x = 655,422.36 × 271,138.16
  4. Step 4: Simplify right side
    475,075.92x = 177,710,012,713.26
  5. Step 5: Solve for x
    x = 177,710,012,713.26/475,075.92
  6. Step 6: Final answer
    x = 374,066.55

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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.