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Finding the Fourth Proportional to 658,392.34, 908,578.63 and 368,003.52

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Solution

The fourth proportional to 658,392.34, 908,578.63 and 368,003.52 is: 507,843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,392.34 : 908,578.63 = 368,003.52 : x
  2. Step 2: Convert to fraction form
    658,392.34/908,578.63 = 368,003.52/x
  3. Step 3: Cross multiply
    658,392.34x = 908,578.63 × 368,003.52
  4. Step 4: Simplify right side
    658,392.34x = 334,360,134,036.78
  5. Step 5: Solve for x
    x = 334,360,134,036.78/658,392.34
  6. Step 6: Final answer
    x = 507,843.29

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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.