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Finding the Fourth Proportional to 375,585.68, 518,307.41 and 203,508.33

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Solution

The fourth proportional to 375,585.68, 518,307.41 and 203,508.33 is: 280,841.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,585.68 : 518,307.41 = 203,508.33 : x
  2. Step 2: Convert to fraction form
    375,585.68/518,307.41 = 203,508.33/x
  3. Step 3: Cross multiply
    375,585.68x = 518,307.41 × 203,508.33
  4. Step 4: Simplify right side
    375,585.68x = 105,479,875,435.73
  5. Step 5: Solve for x
    x = 105,479,875,435.73/375,585.68
  6. Step 6: Final answer
    x = 280,841.05

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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.