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Finding the Fourth Proportional to 675,659.78, 932,370.53 and 369,675.18

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Solution

The fourth proportional to 675,659.78, 932,370.53 and 369,675.18 is: 510,129.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,659.78 : 932,370.53 = 369,675.18 : x
  2. Step 2: Convert to fraction form
    675,659.78/932,370.53 = 369,675.18/x
  3. Step 3: Cross multiply
    675,659.78x = 932,370.53 × 369,675.18
  4. Step 4: Simplify right side
    675,659.78x = 344,674,241,656.07
  5. Step 5: Solve for x
    x = 344,674,241,656.07/675,659.78
  6. Step 6: Final answer
    x = 510,129.88

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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.