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Finding the Fourth Proportional to 490,671.80, 736,007.70 and 476,847.80

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Solution

The fourth proportional to 490,671.80, 736,007.70 and 476,847.80 is: 715,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,671.80 : 736,007.70 = 476,847.80 : x
  2. Step 2: Convert to fraction form
    490,671.80/736,007.70 = 476,847.80/x
  3. Step 3: Cross multiply
    490,671.80x = 736,007.70 × 476,847.80
  4. Step 4: Simplify right side
    490,671.80x = 350,963,652,528.06
  5. Step 5: Solve for x
    x = 350,963,652,528.06/490,671.80
  6. Step 6: Final answer
    x = 715,271.70

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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.