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Finding the Fourth Proportional to 536,593.12, 740,337.02 and 321,654.76

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Solution

The fourth proportional to 536,593.12, 740,337.02 and 321,654.76 is: 443,786.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,593.12 : 740,337.02 = 321,654.76 : x
  2. Step 2: Convert to fraction form
    536,593.12/740,337.02 = 321,654.76/x
  3. Step 3: Cross multiply
    536,593.12x = 740,337.02 × 321,654.76
  4. Step 4: Simplify right side
    536,593.12x = 238,132,926,487.22
  5. Step 5: Solve for x
    x = 238,132,926,487.22/536,593.12
  6. Step 6: Final answer
    x = 443,786.77

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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.