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Finding the Fourth Proportional to 404,316.80, 606,475.20 and 358,827.20

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Solution

The fourth proportional to 404,316.80, 606,475.20 and 358,827.20 is: 538,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,316.80 : 606,475.20 = 358,827.20 : x
  2. Step 2: Convert to fraction form
    404,316.80/606,475.20 = 358,827.20/x
  3. Step 3: Cross multiply
    404,316.80x = 606,475.20 × 358,827.20
  4. Step 4: Simplify right side
    404,316.80x = 217,619,797,885.44
  5. Step 5: Solve for x
    x = 217,619,797,885.44/404,316.80
  6. Step 6: Final answer
    x = 538,240.80

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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.