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Finding the Fourth Proportional to 350,962.71, 484,328.56 and 189,817.72

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Solution

The fourth proportional to 350,962.71, 484,328.56 and 189,817.72 is: 261,948.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,962.71 : 484,328.56 = 189,817.72 : x
  2. Step 2: Convert to fraction form
    350,962.71/484,328.56 = 189,817.72/x
  3. Step 3: Cross multiply
    350,962.71x = 484,328.56 × 189,817.72
  4. Step 4: Simplify right side
    350,962.71x = 91,934,142,990.08
  5. Step 5: Solve for x
    x = 91,934,142,990.08/350,962.71
  6. Step 6: Final answer
    x = 261,948.46

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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.