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Finding the Fourth Proportional to 447,332.50, 617,335.92 and 256,382.83

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Solution

The fourth proportional to 447,332.50, 617,335.92 and 256,382.83 is: 353,818.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,332.50 : 617,335.92 = 256,382.83 : x
  2. Step 2: Convert to fraction form
    447,332.50/617,335.92 = 256,382.83/x
  3. Step 3: Cross multiply
    447,332.50x = 617,335.92 × 256,382.83
  4. Step 4: Simplify right side
    447,332.50x = 158,274,325,861.66
  5. Step 5: Solve for x
    x = 158,274,325,861.66/447,332.50
  6. Step 6: Final answer
    x = 353,818.08

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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.