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Finding the Fourth Proportional to 618,118.11, 928,598.22 and 436,167.59

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Solution

The fourth proportional to 618,118.11, 928,598.22 and 436,167.59 is: 655,254.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,118.11 : 928,598.22 = 436,167.59 : x
  2. Step 2: Convert to fraction form
    618,118.11/928,598.22 = 436,167.59/x
  3. Step 3: Cross multiply
    618,118.11x = 928,598.22 × 436,167.59
  4. Step 4: Simplify right side
    618,118.11x = 405,024,443,052.70
  5. Step 5: Solve for x
    x = 405,024,443,052.70/618,118.11
  6. Step 6: Final answer
    x = 655,254.13

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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.