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Finding the Fourth Proportional to 573,803.42, 791,832.28 and 312,150.51

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Solution

The fourth proportional to 573,803.42, 791,832.28 and 312,150.51 is: 430,758.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,803.42 : 791,832.28 = 312,150.51 : x
  2. Step 2: Convert to fraction form
    573,803.42/791,832.28 = 312,150.51/x
  3. Step 3: Cross multiply
    573,803.42x = 791,832.28 × 312,150.51
  4. Step 4: Simplify right side
    573,803.42x = 247,170,850,719.29
  5. Step 5: Solve for x
    x = 247,170,850,719.29/573,803.42
  6. Step 6: Final answer
    x = 430,758.76

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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.