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Finding the Fourth Proportional to 293,130.90, 411,212.70 and 293,130.90

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Solution

The fourth proportional to 293,130.90, 411,212.70 and 293,130.90 is: 411,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,130.90 : 411,212.70 = 293,130.90 : x
  2. Step 2: Convert to fraction form
    293,130.90/411,212.70 = 293,130.90/x
  3. Step 3: Cross multiply
    293,130.90x = 411,212.70 × 293,130.90
  4. Step 4: Simplify right side
    293,130.90x = 120,539,148,842.43
  5. Step 5: Solve for x
    x = 120,539,148,842.43/293,130.90
  6. Step 6: Final answer
    x = 411,212.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.