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Finding the Fourth Proportional to 443,543.56, 612,090.29 and 239,594.47

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Solution

The fourth proportional to 443,543.56, 612,090.29 and 239,594.47 is: 330,640.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,543.56 : 612,090.29 = 239,594.47 : x
  2. Step 2: Convert to fraction form
    443,543.56/612,090.29 = 239,594.47/x
  3. Step 3: Cross multiply
    443,543.56x = 612,090.29 × 239,594.47
  4. Step 4: Simplify right side
    443,543.56x = 146,653,448,624.70
  5. Step 5: Solve for x
    x = 146,653,448,624.70/443,543.56
  6. Step 6: Final answer
    x = 330,640.46

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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.