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Finding the Fourth Proportional to 341,421.76, 471,115.20 and 190,489.60

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Solution

The fourth proportional to 341,421.76, 471,115.20 and 190,489.60 is: 262,849.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,421.76 : 471,115.20 = 190,489.60 : x
  2. Step 2: Convert to fraction form
    341,421.76/471,115.20 = 190,489.60/x
  3. Step 3: Cross multiply
    341,421.76x = 471,115.20 × 190,489.60
  4. Step 4: Simplify right side
    341,421.76x = 89,742,546,001.92
  5. Step 5: Solve for x
    x = 89,742,546,001.92/341,421.76
  6. Step 6: Final answer
    x = 262,849.52

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1.5x scale

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.