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Finding the Fourth Proportional to 443,385.76, 611,873.16 and 242,181.76

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Solution

The fourth proportional to 443,385.76, 611,873.16 and 242,181.76 is: 334,211.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,385.76 : 611,873.16 = 242,181.76 : x
  2. Step 2: Convert to fraction form
    443,385.76/611,873.16 = 242,181.76/x
  3. Step 3: Cross multiply
    443,385.76x = 611,873.16 × 242,181.76
  4. Step 4: Simplify right side
    443,385.76x = 148,184,518,785.56
  5. Step 5: Solve for x
    x = 148,184,518,785.56/443,385.76
  6. Step 6: Final answer
    x = 334,211.27

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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.