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Finding the Fourth Proportional to 529,055.28, 729,674.12 and 347,953.25

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Solution

The fourth proportional to 529,055.28, 729,674.12 and 347,953.25 is: 479,897.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,055.28 : 729,674.12 = 347,953.25 : x
  2. Step 2: Convert to fraction form
    529,055.28/729,674.12 = 347,953.25/x
  3. Step 3: Cross multiply
    529,055.28x = 729,674.12 × 347,953.25
  4. Step 4: Simplify right side
    529,055.28x = 253,892,484,188.96
  5. Step 5: Solve for x
    x = 253,892,484,188.96/529,055.28
  6. Step 6: Final answer
    x = 479,897.84

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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.