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Finding the Fourth Proportional to 411,989.70, 617,984.55 and 175,340.10

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Solution

The fourth proportional to 411,989.70, 617,984.55 and 175,340.10 is: 263,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,989.70 : 617,984.55 = 175,340.10 : x
  2. Step 2: Convert to fraction form
    411,989.70/617,984.55 = 175,340.10/x
  3. Step 3: Cross multiply
    411,989.70x = 617,984.55 × 175,340.10
  4. Step 4: Simplify right side
    411,989.70x = 108,357,472,795.46
  5. Step 5: Solve for x
    x = 108,357,472,795.46/411,989.70
  6. Step 6: Final answer
    x = 263,010.15

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Similar ratio
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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.