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Finding the Fourth Proportional to 346,666.62, 478,372.71 and 191,611.40

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Solution

The fourth proportional to 346,666.62, 478,372.71 and 191,611.40 is: 264,408.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,666.62 : 478,372.71 = 191,611.40 : x
  2. Step 2: Convert to fraction form
    346,666.62/478,372.71 = 191,611.40/x
  3. Step 3: Cross multiply
    346,666.62x = 478,372.71 × 191,611.40
  4. Step 4: Simplify right side
    346,666.62x = 91,661,664,624.61
  5. Step 5: Solve for x
    x = 91,661,664,624.61/346,666.62
  6. Step 6: Final answer
    x = 264,408.68

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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.