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Finding the Fourth Proportional to 936,182, 1,404,331.28 and 375,143.60

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Solution

The fourth proportional to 936,182, 1,404,331.28 and 375,143.60 is: 562,738.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,182 : 1,404,331.28 = 375,143.60 : x
  2. Step 2: Convert to fraction form
    936,182/1,404,331.28 = 375,143.60/x
  3. Step 3: Cross multiply
    936,182x = 1,404,331.28 × 375,143.60
  4. Step 4: Simplify right side
    936,182x = 526,825,891,971.81
  5. Step 5: Solve for x
    x = 526,825,891,971.81/936,182
  6. Step 6: Final answer
    x = 562,738.75

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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.