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Finding the Fourth Proportional to 424,678.99, 586,049.59 and 231,080.17

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Solution

The fourth proportional to 424,678.99, 586,049.59 and 231,080.17 is: 318,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,678.99 : 586,049.59 = 231,080.17 : x
  2. Step 2: Convert to fraction form
    424,678.99/586,049.59 = 231,080.17/x
  3. Step 3: Cross multiply
    424,678.99x = 586,049.59 × 231,080.17
  4. Step 4: Simplify right side
    424,678.99x = 135,424,438,885.63
  5. Step 5: Solve for x
    x = 135,424,438,885.63/424,678.99
  6. Step 6: Final answer
    x = 318,886.60

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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.