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Finding the Fourth Proportional to 529,132.96, 729,780.96 and 348,030.64

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Solution

The fourth proportional to 529,132.96, 729,780.96 and 348,030.64 is: 480,004.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,132.96 : 729,780.96 = 348,030.64 : x
  2. Step 2: Convert to fraction form
    529,132.96/729,780.96 = 348,030.64/x
  3. Step 3: Cross multiply
    529,132.96x = 729,780.96 × 348,030.64
  4. Step 4: Simplify right side
    529,132.96x = 253,986,134,568.61
  5. Step 5: Solve for x
    x = 253,986,134,568.61/529,132.96
  6. Step 6: Final answer
    x = 480,004.37

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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.