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Finding the Fourth Proportional to 443,312.75, 611,771.60 and 242,108.75

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Solution

The fourth proportional to 443,312.75, 611,771.60 and 242,108.75 is: 334,110.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,312.75 : 611,771.60 = 242,108.75 : x
  2. Step 2: Convert to fraction form
    443,312.75/611,771.60 = 242,108.75/x
  3. Step 3: Cross multiply
    443,312.75x = 611,771.60 × 242,108.75
  4. Step 4: Simplify right side
    443,312.75x = 148,115,257,361.50
  5. Step 5: Solve for x
    x = 148,115,257,361.50/443,312.75
  6. Step 6: Final answer
    x = 334,110.08

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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.