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Finding the Fourth Proportional to 348,534.18, 520,440.44 and 276,650.33

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Solution

The fourth proportional to 348,534.18, 520,440.44 and 276,650.33 is: 413,101.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,534.18 : 520,440.44 = 276,650.33 : x
  2. Step 2: Convert to fraction form
    348,534.18/520,440.44 = 276,650.33/x
  3. Step 3: Cross multiply
    348,534.18x = 520,440.44 × 276,650.33
  4. Step 4: Simplify right side
    348,534.18x = 143,980,015,485.89
  5. Step 5: Solve for x
    x = 143,980,015,485.89/348,534.18
  6. Step 6: Final answer
    x = 413,101.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.