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Finding the Fourth Proportional to 404,633.81, 558,391.58 and 223,345.71

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Solution

The fourth proportional to 404,633.81, 558,391.58 and 223,345.71 is: 308,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,633.81 : 558,391.58 = 223,345.71 : x
  2. Step 2: Convert to fraction form
    404,633.81/558,391.58 = 223,345.71/x
  3. Step 3: Cross multiply
    404,633.81x = 558,391.58 × 223,345.71
  4. Step 4: Simplify right side
    404,633.81x = 124,714,363,893.12
  5. Step 5: Solve for x
    x = 124,714,363,893.12/404,633.81
  6. Step 6: Final answer
    x = 308,215.38

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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.