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Finding the Fourth Proportional to 318,777.66, 439,916.04 and 175,538.28

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Solution

The fourth proportional to 318,777.66, 439,916.04 and 175,538.28 is: 242,244.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,777.66 : 439,916.04 = 175,538.28 : x
  2. Step 2: Convert to fraction form
    318,777.66/439,916.04 = 175,538.28/x
  3. Step 3: Cross multiply
    318,777.66x = 439,916.04 × 175,538.28
  4. Step 4: Simplify right side
    318,777.66x = 77,222,105,006.01
  5. Step 5: Solve for x
    x = 77,222,105,006.01/318,777.66
  6. Step 6: Final answer
    x = 242,244.41

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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.