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Finding the Fourth Proportional to 447,598.80, 617,738.76 and 251,397.36

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Solution

The fourth proportional to 447,598.80, 617,738.76 and 251,397.36 is: 346,957.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,598.80 : 617,738.76 = 251,397.36 : x
  2. Step 2: Convert to fraction form
    447,598.80/617,738.76 = 251,397.36/x
  3. Step 3: Cross multiply
    447,598.80x = 617,738.76 × 251,397.36
  4. Step 4: Simplify right side
    447,598.80x = 155,297,893,433.67
  5. Step 5: Solve for x
    x = 155,297,893,433.67/447,598.80
  6. Step 6: Final answer
    x = 346,957.80

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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.