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Finding the Fourth Proportional to 272,203.28, 407,506.47 and 190,868.28

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Solution

The fourth proportional to 272,203.28, 407,506.47 and 190,868.28 is: 285,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,203.28 : 407,506.47 = 190,868.28 : x
  2. Step 2: Convert to fraction form
    272,203.28/407,506.47 = 190,868.28/x
  3. Step 3: Cross multiply
    272,203.28x = 407,506.47 × 190,868.28
  4. Step 4: Simplify right side
    272,203.28x = 77,780,059,017.77
  5. Step 5: Solve for x
    x = 77,780,059,017.77/272,203.28
  6. Step 6: Final answer
    x = 285,742.55

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1.5x scale

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.