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Finding the Fourth Proportional to 496,404.79, 744,484.14 and 141,421.88

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Solution

The fourth proportional to 496,404.79, 744,484.14 and 141,421.88 is: 212,097.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,404.79 : 744,484.14 = 141,421.88 : x
  2. Step 2: Convert to fraction form
    496,404.79/744,484.14 = 141,421.88/x
  3. Step 3: Cross multiply
    496,404.79x = 744,484.14 × 141,421.88
  4. Step 4: Simplify right side
    496,404.79x = 105,286,348,570.19
  5. Step 5: Solve for x
    x = 105,286,348,570.19/496,404.79
  6. Step 6: Final answer
    x = 212,097.77

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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.