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Finding the Fourth Proportional to 529,877.46, 730,860.25 and 348,531.42

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Solution

The fourth proportional to 529,877.46, 730,860.25 and 348,531.42 is: 480,729.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,877.46 : 730,860.25 = 348,531.42 : x
  2. Step 2: Convert to fraction form
    529,877.46/730,860.25 = 348,531.42/x
  3. Step 3: Cross multiply
    529,877.46x = 730,860.25 × 348,531.42
  4. Step 4: Simplify right side
    529,877.46x = 254,727,760,754.06
  5. Step 5: Solve for x
    x = 254,727,760,754.06/529,877.46
  6. Step 6: Final answer
    x = 480,729.56

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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.