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Finding the Fourth Proportional to 611,240.10, 915,110.55 and 541,256.10

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Solution

The fourth proportional to 611,240.10, 915,110.55 and 541,256.10 is: 810,334.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,240.10 : 915,110.55 = 541,256.10 : x
  2. Step 2: Convert to fraction form
    611,240.10/915,110.55 = 541,256.10/x
  3. Step 3: Cross multiply
    611,240.10x = 915,110.55 × 541,256.10
  4. Step 4: Simplify right side
    611,240.10x = 495,309,167,361.86
  5. Step 5: Solve for x
    x = 495,309,167,361.86/611,240.10
  6. Step 6: Final answer
    x = 810,334.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.