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Finding the Fourth Proportional to 439,458.92, 606,458.02 and 258,178.44

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Solution

The fourth proportional to 439,458.92, 606,458.02 and 258,178.44 is: 356,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,458.92 : 606,458.02 = 258,178.44 : x
  2. Step 2: Convert to fraction form
    439,458.92/606,458.02 = 258,178.44/x
  3. Step 3: Cross multiply
    439,458.92x = 606,458.02 × 258,178.44
  4. Step 4: Simplify right side
    439,458.92x = 156,574,385,529.09
  5. Step 5: Solve for x
    x = 156,574,385,529.09/439,458.92
  6. Step 6: Final answer
    x = 356,289.01

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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.