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Finding the Fourth Proportional to 551,353,244.40, 827,029,866.60 and 347,279,900.40

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Solution

The fourth proportional to 551,353,244.40, 827,029,866.60 and 347,279,900.40 is: 520,919,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,353,244.40 : 827,029,866.60 = 347,279,900.40 : x
  2. Step 2: Convert to fraction form
    551,353,244.40/827,029,866.60 = 347,279,900.40/x
  3. Step 3: Cross multiply
    551,353,244.40x = 827,029,866.60 × 347,279,900.40
  4. Step 4: Simplify right side
    551,353,244.40x = 287,210,849,700,673,280
  5. Step 5: Solve for x
    x = 287,210,849,700,673,280/551,353,244.40
  6. Step 6: Final answer
    x = 520,919,850.60

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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.