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Finding the Fourth Proportional to 469,926, 648,498.53 and 255,066.11

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Solution

The fourth proportional to 469,926, 648,498.53 and 255,066.11 is: 351,991.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,926 : 648,498.53 = 255,066.11 : x
  2. Step 2: Convert to fraction form
    469,926/648,498.53 = 255,066.11/x
  3. Step 3: Cross multiply
    469,926x = 648,498.53 × 255,066.11
  4. Step 4: Simplify right side
    469,926x = 165,409,997,387.82
  5. Step 5: Solve for x
    x = 165,409,997,387.82/469,926
  6. Step 6: Final answer
    x = 351,991.58

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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.