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Finding the Fourth Proportional to 319,606.56, 478,953 and 234,700.74

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Solution

The fourth proportional to 319,606.56, 478,953 and 234,700.74 is: 351,715.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,606.56 : 478,953 = 234,700.74 : x
  2. Step 2: Convert to fraction form
    319,606.56/478,953 = 234,700.74/x
  3. Step 3: Cross multiply
    319,606.56x = 478,953 × 234,700.74
  4. Step 4: Simplify right side
    319,606.56x = 112,410,623,525.22
  5. Step 5: Solve for x
    x = 112,410,623,525.22/319,606.56
  6. Step 6: Final answer
    x = 351,715.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.