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Finding the Fourth Proportional to 300,435.61, 414,646.68 and 171,373.45

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Solution

The fourth proportional to 300,435.61, 414,646.68 and 171,373.45 is: 236,521.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,435.61 : 414,646.68 = 171,373.45 : x
  2. Step 2: Convert to fraction form
    300,435.61/414,646.68 = 171,373.45/x
  3. Step 3: Cross multiply
    300,435.61x = 414,646.68 × 171,373.45
  4. Step 4: Simplify right side
    300,435.61x = 71,059,432,082.65
  5. Step 5: Solve for x
    x = 71,059,432,082.65/300,435.61
  6. Step 6: Final answer
    x = 236,521.34

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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.