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Finding the Fourth Proportional to 531,245.16, 733,099.74 and 289,522.92

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Solution

The fourth proportional to 531,245.16, 733,099.74 and 289,522.92 is: 399,531.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,245.16 : 733,099.74 = 289,522.92 : x
  2. Step 2: Convert to fraction form
    531,245.16/733,099.74 = 289,522.92/x
  3. Step 3: Cross multiply
    531,245.16x = 733,099.74 × 289,522.92
  4. Step 4: Simplify right side
    531,245.16x = 212,249,177,376.04
  5. Step 5: Solve for x
    x = 212,249,177,376.04/531,245.16
  6. Step 6: Final answer
    x = 399,531.50

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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.