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Finding the Fourth Proportional to 674,257.61, 930,434.37 and 368,272.01

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Solution

The fourth proportional to 674,257.61, 930,434.37 and 368,272.01 is: 508,192.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,257.61 : 930,434.37 = 368,272.01 : x
  2. Step 2: Convert to fraction form
    674,257.61/930,434.37 = 368,272.01/x
  3. Step 3: Cross multiply
    674,257.61x = 930,434.37 × 368,272.01
  4. Step 4: Simplify right side
    674,257.61x = 342,652,935,612.98
  5. Step 5: Solve for x
    x = 342,652,935,612.98/674,257.61
  6. Step 6: Final answer
    x = 508,192.91

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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.