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Finding the Fourth Proportional to 578,859.77, 869,084.99 and 294,741.20

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Solution

The fourth proportional to 578,859.77, 869,084.99 and 294,741.20 is: 442,516.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,859.77 : 869,084.99 = 294,741.20 : x
  2. Step 2: Convert to fraction form
    578,859.77/869,084.99 = 294,741.20/x
  3. Step 3: Cross multiply
    578,859.77x = 869,084.99 × 294,741.20
  4. Step 4: Simplify right side
    578,859.77x = 256,155,147,035.46
  5. Step 5: Solve for x
    x = 256,155,147,035.46/578,859.77
  6. Step 6: Final answer
    x = 442,516.76

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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.