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Finding the Fourth Proportional to 605,589.80, 908,384.70 and 572,930.60

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Solution

The fourth proportional to 605,589.80, 908,384.70 and 572,930.60 is: 859,395.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,589.80 : 908,384.70 = 572,930.60 : x
  2. Step 2: Convert to fraction form
    605,589.80/908,384.70 = 572,930.60/x
  3. Step 3: Cross multiply
    605,589.80x = 908,384.70 × 572,930.60
  4. Step 4: Simplify right side
    605,589.80x = 520,441,391,201.82
  5. Step 5: Solve for x
    x = 520,441,391,201.82/605,589.80
  6. Step 6: Final answer
    x = 859,395.90

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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.