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Finding the Fourth Proportional to 674,658, 931,015.56 and 372,845.52

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Solution

The fourth proportional to 674,658, 931,015.56 and 372,845.52 is: 514,519.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,658 : 931,015.56 = 372,845.52 : x
  2. Step 2: Convert to fraction form
    674,658/931,015.56 = 372,845.52/x
  3. Step 3: Cross multiply
    674,658x = 931,015.56 × 372,845.52
  4. Step 4: Simplify right side
    674,658x = 347,124,980,596.29
  5. Step 5: Solve for x
    x = 347,124,980,596.29/674,658
  6. Step 6: Final answer
    x = 514,519.92

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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.