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Finding the Fourth Proportional to 443,911.86, 612,589.14 and 242,707.86

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Solution

The fourth proportional to 443,911.86, 612,589.14 and 242,707.86 is: 334,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,911.86 : 612,589.14 = 242,707.86 : x
  2. Step 2: Convert to fraction form
    443,911.86/612,589.14 = 242,707.86/x
  3. Step 3: Cross multiply
    443,911.86x = 612,589.14 × 242,707.86
  4. Step 4: Simplify right side
    443,911.86x = 148,680,199,228.64
  5. Step 5: Solve for x
    x = 148,680,199,228.64/443,911.86
  6. Step 6: Final answer
    x = 334,931.80

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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.