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Finding the Fourth Proportional to 530,847.40, 796,271.10 and 404,876.20

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Solution

The fourth proportional to 530,847.40, 796,271.10 and 404,876.20 is: 607,314.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,847.40 : 796,271.10 = 404,876.20 : x
  2. Step 2: Convert to fraction form
    530,847.40/796,271.10 = 404,876.20/x
  3. Step 3: Cross multiply
    530,847.40x = 796,271.10 × 404,876.20
  4. Step 4: Simplify right side
    530,847.40x = 322,391,217,137.82
  5. Step 5: Solve for x
    x = 322,391,217,137.82/530,847.40
  6. Step 6: Final answer
    x = 607,314.30

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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.