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Finding the Fourth Proportional to 492,710.30, 739,065.45 and 177,126.20

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Solution

The fourth proportional to 492,710.30, 739,065.45 and 177,126.20 is: 265,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,710.30 : 739,065.45 = 177,126.20 : x
  2. Step 2: Convert to fraction form
    492,710.30/739,065.45 = 177,126.20/x
  3. Step 3: Cross multiply
    492,710.30x = 739,065.45 × 177,126.20
  4. Step 4: Simplify right side
    492,710.30x = 130,907,854,709.79
  5. Step 5: Solve for x
    x = 130,907,854,709.79/492,710.30
  6. Step 6: Final answer
    x = 265,689.30

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Similar ratio
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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.