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Finding the Fourth Proportional to 576,088.45, 795,001.56 and 321,439.63

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Solution

The fourth proportional to 576,088.45, 795,001.56 and 321,439.63 is: 443,586.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,088.45 : 795,001.56 = 321,439.63 : x
  2. Step 2: Convert to fraction form
    576,088.45/795,001.56 = 321,439.63/x
  3. Step 3: Cross multiply
    576,088.45x = 795,001.56 × 321,439.63
  4. Step 4: Simplify right side
    576,088.45x = 255,545,007,295.82
  5. Step 5: Solve for x
    x = 255,545,007,295.82/576,088.45
  6. Step 6: Final answer
    x = 443,586.41

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1.5x scale

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.