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Finding the Fourth Proportional to 531,506.33, 733,482.05 and 289,792.92

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Solution

The fourth proportional to 531,506.33, 733,482.05 and 289,792.92 is: 399,916.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,506.33 : 733,482.05 = 289,792.92 : x
  2. Step 2: Convert to fraction form
    531,506.33/733,482.05 = 289,792.92/x
  3. Step 3: Cross multiply
    531,506.33x = 733,482.05 × 289,792.92
  4. Step 4: Simplify right side
    531,506.33x = 212,557,903,588.12
  5. Step 5: Solve for x
    x = 212,557,903,588.12/531,506.33
  6. Step 6: Final answer
    x = 399,916.04

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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.