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Finding the Fourth Proportional to 404,574.16, 558,308.46 and 223,287.88

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Solution

The fourth proportional to 404,574.16, 558,308.46 and 223,287.88 is: 308,135.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,574.16 : 558,308.46 = 223,287.88 : x
  2. Step 2: Convert to fraction form
    404,574.16/558,308.46 = 223,287.88/x
  3. Step 3: Cross multiply
    404,574.16x = 558,308.46 × 223,287.88
  4. Step 4: Simplify right side
    404,574.16x = 124,663,512,419.47
  5. Step 5: Solve for x
    x = 124,663,512,419.47/404,574.16
  6. Step 6: Final answer
    x = 308,135.13

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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.