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Finding the Fourth Proportional to 404,531.80, 606,305.70 and 286,237.24

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Solution

The fourth proportional to 404,531.80, 606,305.70 and 286,237.24 is: 429,007.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,531.80 : 606,305.70 = 286,237.24 : x
  2. Step 2: Convert to fraction form
    404,531.80/606,305.70 = 286,237.24/x
  3. Step 3: Cross multiply
    404,531.80x = 606,305.70 × 286,237.24
  4. Step 4: Simplify right side
    404,531.80x = 173,547,270,164.27
  5. Step 5: Solve for x
    x = 173,547,270,164.27/404,531.80
  6. Step 6: Final answer
    x = 429,007.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.