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Finding the Fourth Proportional to 459,346.44, 688,723.26 and 219,330.44

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Solution

The fourth proportional to 459,346.44, 688,723.26 and 219,330.44 is: 328,854.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,346.44 : 688,723.26 = 219,330.44 : x
  2. Step 2: Convert to fraction form
    459,346.44/688,723.26 = 219,330.44/x
  3. Step 3: Cross multiply
    459,346.44x = 688,723.26 × 219,330.44
  4. Step 4: Simplify right side
    459,346.44x = 151,057,975,654.03
  5. Step 5: Solve for x
    x = 151,057,975,654.03/459,346.44
  6. Step 6: Final answer
    x = 328,854.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.