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Finding the Fourth Proportional to 569,899.05, 786,392.17 and 328,260.21

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Solution

The fourth proportional to 569,899.05, 786,392.17 and 328,260.21 is: 452,959.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,899.05 : 786,392.17 = 328,260.21 : x
  2. Step 2: Convert to fraction form
    569,899.05/786,392.17 = 328,260.21/x
  3. Step 3: Cross multiply
    569,899.05x = 786,392.17 × 328,260.21
  4. Step 4: Simplify right side
    569,899.05x = 258,141,258,866.56
  5. Step 5: Solve for x
    x = 258,141,258,866.56/569,899.05
  6. Step 6: Final answer
    x = 452,959.62

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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.