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Finding the Fourth Proportional to 917,549.16, 1,375,566 and 404,849.30

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Solution

The fourth proportional to 917,549.16, 1,375,566 and 404,849.30 is: 606,939.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,549.16 : 1,375,566 = 404,849.30 : x
  2. Step 2: Convert to fraction form
    917,549.16/1,375,566 = 404,849.30/x
  3. Step 3: Cross multiply
    917,549.16x = 1,375,566 × 404,849.30
  4. Step 4: Simplify right side
    917,549.16x = 556,896,925,325.97
  5. Step 5: Solve for x
    x = 556,896,925,325.97/917,549.16
  6. Step 6: Final answer
    x = 606,939.61

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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.