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Finding the Fourth Proportional to 404,707.09, 558,500.30 and 223,419.11

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Solution

The fourth proportional to 404,707.09, 558,500.30 and 223,419.11 is: 308,320.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,707.09 : 558,500.30 = 223,419.11 : x
  2. Step 2: Convert to fraction form
    404,707.09/558,500.30 = 223,419.11/x
  3. Step 3: Cross multiply
    404,707.09x = 558,500.30 × 223,419.11
  4. Step 4: Simplify right side
    404,707.09x = 124,779,639,960.73
  5. Step 5: Solve for x
    x = 124,779,639,960.73/404,707.09
  6. Step 6: Final answer
    x = 308,320.86

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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.