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Finding the Fourth Proportional to 531,816.77, 733,911.82 and 290,100.42

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Solution

The fourth proportional to 531,816.77, 733,911.82 and 290,100.42 is: 400,341.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,816.77 : 733,911.82 = 290,100.42 : x
  2. Step 2: Convert to fraction form
    531,816.77/733,911.82 = 290,100.42/x
  3. Step 3: Cross multiply
    531,816.77x = 733,911.82 × 290,100.42
  4. Step 4: Simplify right side
    531,816.77x = 212,908,123,555.41
  5. Step 5: Solve for x
    x = 212,908,123,555.41/531,816.77
  6. Step 6: Final answer
    x = 400,341.13

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.