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Finding the Fourth Proportional to 379,290.61, 523,525.35 and 235,965.16

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Solution

The fourth proportional to 379,290.61, 523,525.35 and 235,965.16 is: 325,696.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,290.61 : 523,525.35 = 235,965.16 : x
  2. Step 2: Convert to fraction form
    379,290.61/523,525.35 = 235,965.16/x
  3. Step 3: Cross multiply
    379,290.61x = 523,525.35 × 235,965.16
  4. Step 4: Simplify right side
    379,290.61x = 123,533,742,976.81
  5. Step 5: Solve for x
    x = 123,533,742,976.81/379,290.61
  6. Step 6: Final answer
    x = 325,696.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.