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Finding the Fourth Proportional to 571,880.17, 857,826.39 and 172,524.40

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Solution

The fourth proportional to 571,880.17, 857,826.39 and 172,524.40 is: 258,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,880.17 : 857,826.39 = 172,524.40 : x
  2. Step 2: Convert to fraction form
    571,880.17/857,826.39 = 172,524.40/x
  3. Step 3: Cross multiply
    571,880.17x = 857,826.39 × 172,524.40
  4. Step 4: Simplify right side
    571,880.17x = 147,995,983,238.92
  5. Step 5: Solve for x
    x = 147,995,983,238.92/571,880.17
  6. Step 6: Final answer
    x = 258,788.45

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1.5x scale

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.