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Finding the Fourth Proportional to 499,114.82, 688,778.74 and 272,760.32

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Solution

The fourth proportional to 499,114.82, 688,778.74 and 272,760.32 is: 376,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,114.82 : 688,778.74 = 272,760.32 : x
  2. Step 2: Convert to fraction form
    499,114.82/688,778.74 = 272,760.32/x
  3. Step 3: Cross multiply
    499,114.82x = 688,778.74 × 272,760.32
  4. Step 4: Simplify right side
    499,114.82x = 187,871,509,531.60
  5. Step 5: Solve for x
    x = 187,871,509,531.60/499,114.82
  6. Step 6: Final answer
    x = 376,409.40

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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.