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Finding the Fourth Proportional to 431,555.58, 595,616.85 and 259,647.30

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Solution

The fourth proportional to 431,555.58, 595,616.85 and 259,647.30 is: 358,355.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,555.58 : 595,616.85 = 259,647.30 : x
  2. Step 2: Convert to fraction form
    431,555.58/595,616.85 = 259,647.30/x
  3. Step 3: Cross multiply
    431,555.58x = 595,616.85 × 259,647.30
  4. Step 4: Simplify right side
    431,555.58x = 154,650,306,937.01
  5. Step 5: Solve for x
    x = 154,650,306,937.01/431,555.58
  6. Step 6: Final answer
    x = 358,355.48

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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.