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Finding the Fourth Proportional to 443,390.63, 611,879.13 and 242,186.63

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Solution

The fourth proportional to 443,390.63, 611,879.13 and 242,186.63 is: 334,217.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,390.63 : 611,879.13 = 242,186.63 : x
  2. Step 2: Convert to fraction form
    443,390.63/611,879.13 = 242,186.63/x
  3. Step 3: Cross multiply
    443,390.63x = 611,879.13 × 242,186.63
  4. Step 4: Simplify right side
    443,390.63x = 148,188,941,402.64
  5. Step 5: Solve for x
    x = 148,188,941,402.64/443,390.63
  6. Step 6: Final answer
    x = 334,217.58

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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.