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Finding the Fourth Proportional to 289,423.42, 399,418.56 and 174,700.24

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Solution

The fourth proportional to 289,423.42, 399,418.56 and 174,700.24 is: 241,094.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,423.42 : 399,418.56 = 174,700.24 : x
  2. Step 2: Convert to fraction form
    289,423.42/399,418.56 = 174,700.24/x
  3. Step 3: Cross multiply
    289,423.42x = 399,418.56 × 174,700.24
  4. Step 4: Simplify right side
    289,423.42x = 69,778,517,293.91
  5. Step 5: Solve for x
    x = 69,778,517,293.91/289,423.42
  6. Step 6: Final answer
    x = 241,094.93

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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.