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Finding the Fourth Proportional to 585,357.12, 807,747.84 and 330,731.52

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Solution

The fourth proportional to 585,357.12, 807,747.84 and 330,731.52 is: 456,384.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,357.12 : 807,747.84 = 330,731.52 : x
  2. Step 2: Convert to fraction form
    585,357.12/807,747.84 = 330,731.52/x
  3. Step 3: Cross multiply
    585,357.12x = 807,747.84 × 330,731.52
  4. Step 4: Simplify right side
    585,357.12x = 267,147,670,899.92
  5. Step 5: Solve for x
    x = 267,147,670,899.92/585,357.12
  6. Step 6: Final answer
    x = 456,384.08

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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.