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Finding the Fourth Proportional to 309,440.40, 466,105.44 and 281,539.68

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Solution

The fourth proportional to 309,440.40, 466,105.44 and 281,539.68 is: 424,079.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,440.40 : 466,105.44 = 281,539.68 : x
  2. Step 2: Convert to fraction form
    309,440.40/466,105.44 = 281,539.68/x
  3. Step 3: Cross multiply
    309,440.40x = 466,105.44 × 281,539.68
  4. Step 4: Simplify right side
    309,440.40x = 131,227,176,423.86
  5. Step 5: Solve for x
    x = 131,227,176,423.86/309,440.40
  6. Step 6: Final answer
    x = 424,079.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.