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Finding the Fourth Proportional to 340,891.49, 470,463.53 and 254,700.92

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Solution

The fourth proportional to 340,891.49, 470,463.53 and 254,700.92 is: 351,512.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,891.49 : 470,463.53 = 254,700.92 : x
  2. Step 2: Convert to fraction form
    340,891.49/470,463.53 = 254,700.92/x
  3. Step 3: Cross multiply
    340,891.49x = 470,463.53 × 254,700.92
  4. Step 4: Simplify right side
    340,891.49x = 119,827,493,820.10
  5. Step 5: Solve for x
    x = 119,827,493,820.10/340,891.49
  6. Step 6: Final answer
    x = 351,512.13

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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.