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Finding the Fourth Proportional to 531,611.31, 733,641.33 and 289,907.10

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Solution

The fourth proportional to 531,611.31, 733,641.33 and 289,907.10 is: 400,081.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,611.31 : 733,641.33 = 289,907.10 : x
  2. Step 2: Convert to fraction form
    531,611.31/733,641.33 = 289,907.10/x
  3. Step 3: Cross multiply
    531,611.31x = 733,641.33 × 289,907.10
  4. Step 4: Simplify right side
    531,611.31x = 212,687,830,420.44
  5. Step 5: Solve for x
    x = 212,687,830,420.44/531,611.31
  6. Step 6: Final answer
    x = 400,081.46

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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.