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Finding the Fourth Proportional to 531,083.45, 732,898.38 and 316,232.57

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Solution

The fourth proportional to 531,083.45, 732,898.38 and 316,232.57 is: 436,402.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,083.45 : 732,898.38 = 316,232.57 : x
  2. Step 2: Convert to fraction form
    531,083.45/732,898.38 = 316,232.57/x
  3. Step 3: Cross multiply
    531,083.45x = 732,898.38 × 316,232.57
  4. Step 4: Simplify right side
    531,083.45x = 231,766,338,256.24
  5. Step 5: Solve for x
    x = 231,766,338,256.24/531,083.45
  6. Step 6: Final answer
    x = 436,402.86

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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.