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Finding the Fourth Proportional to 447,395.92, 617,416.65 and 253,816.60

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Solution

The fourth proportional to 447,395.92, 617,416.65 and 253,816.60 is: 350,272.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,395.92 : 617,416.65 = 253,816.60 : x
  2. Step 2: Convert to fraction form
    447,395.92/617,416.65 = 253,816.60/x
  3. Step 3: Cross multiply
    447,395.92x = 617,416.65 × 253,816.60
  4. Step 4: Simplify right side
    447,395.92x = 156,710,594,886.39
  5. Step 5: Solve for x
    x = 156,710,594,886.39/447,395.92
  6. Step 6: Final answer
    x = 350,272.74

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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.