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Finding the Fourth Proportional to 475,015.61, 655,503.90 and 260,157.44

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Solution

The fourth proportional to 475,015.61, 655,503.90 and 260,157.44 is: 359,007.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,015.61 : 655,503.90 = 260,157.44 : x
  2. Step 2: Convert to fraction form
    475,015.61/655,503.90 = 260,157.44/x
  3. Step 3: Cross multiply
    475,015.61x = 655,503.90 × 260,157.44
  4. Step 4: Simplify right side
    475,015.61x = 170,534,216,534.02
  5. Step 5: Solve for x
    x = 170,534,216,534.02/475,015.61
  6. Step 6: Final answer
    x = 359,007.61

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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.