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Finding the Fourth Proportional to 595,311.45, 821,506.23 and 353,587.61

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Solution

The fourth proportional to 595,311.45, 821,506.23 and 353,587.61 is: 487,936.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,311.45 : 821,506.23 = 353,587.61 : x
  2. Step 2: Convert to fraction form
    595,311.45/821,506.23 = 353,587.61/x
  3. Step 3: Cross multiply
    595,311.45x = 821,506.23 × 353,587.61
  4. Step 4: Simplify right side
    595,311.45x = 290,474,420,358.28
  5. Step 5: Solve for x
    x = 290,474,420,358.28/595,311.45
  6. Step 6: Final answer
    x = 487,936.89

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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.