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Finding the Fourth Proportional to 424,234.77, 585,455.52 and 230,655.51

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Solution

The fourth proportional to 424,234.77, 585,455.52 and 230,655.51 is: 318,310.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,234.77 : 585,455.52 = 230,655.51 : x
  2. Step 2: Convert to fraction form
    424,234.77/585,455.52 = 230,655.51/x
  3. Step 3: Cross multiply
    424,234.77x = 585,455.52 × 230,655.51
  4. Step 4: Simplify right side
    424,234.77x = 135,038,541,547.92
  5. Step 5: Solve for x
    x = 135,038,541,547.92/424,234.77
  6. Step 6: Final answer
    x = 318,310.88

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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.