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Finding the Fourth Proportional to 516,112.12, 774,258.96 and 235,657.72

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Solution

The fourth proportional to 516,112.12, 774,258.96 and 235,657.72 is: 353,528.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,112.12 : 774,258.96 = 235,657.72 : x
  2. Step 2: Convert to fraction form
    516,112.12/774,258.96 = 235,657.72/x
  3. Step 3: Cross multiply
    516,112.12x = 774,258.96 × 235,657.72
  4. Step 4: Simplify right side
    516,112.12x = 182,460,101,203.17
  5. Step 5: Solve for x
    x = 182,460,101,203.17/516,112.12
  6. Step 6: Final answer
    x = 353,528.03

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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.