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Finding the Fourth Proportional to 447,707.43, 617,805.07 and 254,119.10

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Solution

The fourth proportional to 447,707.43, 617,805.07 and 254,119.10 is: 350,666.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,707.43 : 617,805.07 = 254,119.10 : x
  2. Step 2: Convert to fraction form
    447,707.43/617,805.07 = 254,119.10/x
  3. Step 3: Cross multiply
    447,707.43x = 617,805.07 × 254,119.10
  4. Step 4: Simplify right side
    447,707.43x = 156,996,068,363.84
  5. Step 5: Solve for x
    x = 156,996,068,363.84/447,707.43
  6. Step 6: Final answer
    x = 350,666.66

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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.