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Finding the Fourth Proportional to 381,730.40, 572,595.60 and 364,234.40

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Solution

The fourth proportional to 381,730.40, 572,595.60 and 364,234.40 is: 546,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,730.40 : 572,595.60 = 364,234.40 : x
  2. Step 2: Convert to fraction form
    381,730.40/572,595.60 = 364,234.40/x
  3. Step 3: Cross multiply
    381,730.40x = 572,595.60 × 364,234.40
  4. Step 4: Simplify right side
    381,730.40x = 208,559,014,808.64
  5. Step 5: Solve for x
    x = 208,559,014,808.64/381,730.40
  6. Step 6: Final answer
    x = 546,351.60

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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.