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Finding the Fourth Proportional to 482,012.90, 723,019.35 and 245,816.90

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Solution

The fourth proportional to 482,012.90, 723,019.35 and 245,816.90 is: 368,725.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,012.90 : 723,019.35 = 245,816.90 : x
  2. Step 2: Convert to fraction form
    482,012.90/723,019.35 = 245,816.90/x
  3. Step 3: Cross multiply
    482,012.90x = 723,019.35 × 245,816.90
  4. Step 4: Simplify right side
    482,012.90x = 177,730,375,257.02
  5. Step 5: Solve for x
    x = 177,730,375,257.02/482,012.90
  6. Step 6: Final answer
    x = 368,725.35

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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.