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Finding the Fourth Proportional to 475,130.67, 655,680.44 and 260,278.37

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Solution

The fourth proportional to 475,130.67, 655,680.44 and 260,278.37 is: 359,184.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,130.67 : 655,680.44 = 260,278.37 : x
  2. Step 2: Convert to fraction form
    475,130.67/655,680.44 = 260,278.37/x
  3. Step 3: Cross multiply
    475,130.67x = 655,680.44 × 260,278.37
  4. Step 4: Simplify right side
    475,130.67x = 170,659,435,513.39
  5. Step 5: Solve for x
    x = 170,659,435,513.39/475,130.67
  6. Step 6: Final answer
    x = 359,184.21

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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.