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Finding the Fourth Proportional to 468,285.22, 646,234.74 and 253,426.84

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Solution

The fourth proportional to 468,285.22, 646,234.74 and 253,426.84 is: 349,729.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,285.22 : 646,234.74 = 253,426.84 : x
  2. Step 2: Convert to fraction form
    468,285.22/646,234.74 = 253,426.84/x
  3. Step 3: Cross multiply
    468,285.22x = 646,234.74 × 253,426.84
  4. Step 4: Simplify right side
    468,285.22x = 163,773,228,056.42
  5. Step 5: Solve for x
    x = 163,773,228,056.42/468,285.22
  6. Step 6: Final answer
    x = 349,729.65

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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.