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Finding the Fourth Proportional to 447,053.16, 616,949.58 and 256,103.45

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Solution

The fourth proportional to 447,053.16, 616,949.58 and 256,103.45 is: 353,432.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,053.16 : 616,949.58 = 256,103.45 : x
  2. Step 2: Convert to fraction form
    447,053.16/616,949.58 = 256,103.45/x
  3. Step 3: Cross multiply
    447,053.16x = 616,949.58 × 256,103.45
  4. Step 4: Simplify right side
    447,053.16x = 158,002,914,633.53
  5. Step 5: Solve for x
    x = 158,002,914,633.53/447,053.16
  6. Step 6: Final answer
    x = 353,432.05

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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.