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Finding the Fourth Proportional to 447,737.20, 672,124.20 and 270,444.40

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Solution

The fourth proportional to 447,737.20, 672,124.20 and 270,444.40 is: 405,979.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,737.20 : 672,124.20 = 270,444.40 : x
  2. Step 2: Convert to fraction form
    447,737.20/672,124.20 = 270,444.40/x
  3. Step 3: Cross multiply
    447,737.20x = 672,124.20 × 270,444.40
  4. Step 4: Simplify right side
    447,737.20x = 181,772,225,994.48
  5. Step 5: Solve for x
    x = 181,772,225,994.48/447,737.20
  6. Step 6: Final answer
    x = 405,979.73

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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.