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Finding the Fourth Proportional to 536,699.90, 740,650.47 and 294,988.09

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Solution

The fourth proportional to 536,699.90, 740,650.47 and 294,988.09 is: 407,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,699.90 : 740,650.47 = 294,988.09 : x
  2. Step 2: Convert to fraction form
    536,699.90/740,650.47 = 294,988.09/x
  3. Step 3: Cross multiply
    536,699.90x = 740,650.47 × 294,988.09
  4. Step 4: Simplify right side
    536,699.90x = 218,483,067,502.90
  5. Step 5: Solve for x
    x = 218,483,067,502.90/536,699.90
  6. Step 6: Final answer
    x = 407,086.10

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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.