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Finding the Fourth Proportional to 646,607.84, 969,911.77 and 197,331.01

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Solution

The fourth proportional to 646,607.84, 969,911.77 and 197,331.01 is: 295,996.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,607.84 : 969,911.77 = 197,331.01 : x
  2. Step 2: Convert to fraction form
    646,607.84/969,911.77 = 197,331.01/x
  3. Step 3: Cross multiply
    646,607.84x = 969,911.77 × 197,331.01
  4. Step 4: Simplify right side
    646,607.84x = 191,393,669,184.99
  5. Step 5: Solve for x
    x = 191,393,669,184.99/646,607.84
  6. Step 6: Final answer
    x = 295,996.52

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Double scale
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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.