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Finding the Fourth Proportional to 530,769.60, 796,154.40 and 425,793.60

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Solution

The fourth proportional to 530,769.60, 796,154.40 and 425,793.60 is: 638,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,769.60 : 796,154.40 = 425,793.60 : x
  2. Step 2: Convert to fraction form
    530,769.60/796,154.40 = 425,793.60/x
  3. Step 3: Cross multiply
    530,769.60x = 796,154.40 × 425,793.60
  4. Step 4: Simplify right side
    530,769.60x = 338,997,448,131.84
  5. Step 5: Solve for x
    x = 338,997,448,131.84/530,769.60
  6. Step 6: Final answer
    x = 638,690.40

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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.