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Finding the Fourth Proportional to 569,622.45, 853,686.24 and 419,158.20

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Solution

The fourth proportional to 569,622.45, 853,686.24 and 419,158.20 is: 628,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,622.45 : 853,686.24 = 419,158.20 : x
  2. Step 2: Convert to fraction form
    569,622.45/853,686.24 = 419,158.20/x
  3. Step 3: Cross multiply
    569,622.45x = 853,686.24 × 419,158.20
  4. Step 4: Simplify right side
    569,622.45x = 357,829,587,723.17
  5. Step 5: Solve for x
    x = 357,829,587,723.17/569,622.45
  6. Step 6: Final answer
    x = 628,187.30

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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.