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Finding the Fourth Proportional to 404,291.16, 606,497.40 and 130,646.16

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Solution

The fourth proportional to 404,291.16, 606,497.40 and 130,646.16 is: 195,988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,291.16 : 606,497.40 = 130,646.16 : x
  2. Step 2: Convert to fraction form
    404,291.16/606,497.40 = 130,646.16/x
  3. Step 3: Cross multiply
    404,291.16x = 606,497.40 × 130,646.16
  4. Step 4: Simplify right side
    404,291.16x = 79,236,556,359.98
  5. Step 5: Solve for x
    x = 79,236,556,359.98/404,291.16
  6. Step 6: Final answer
    x = 195,988.84

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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.