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Finding the Fourth Proportional to 461,226.78, 636,493.08 and 260,022.78

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Solution

The fourth proportional to 461,226.78, 636,493.08 and 260,022.78 is: 358,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,226.78 : 636,493.08 = 260,022.78 : x
  2. Step 2: Convert to fraction form
    461,226.78/636,493.08 = 260,022.78/x
  3. Step 3: Cross multiply
    461,226.78x = 636,493.08 × 260,022.78
  4. Step 4: Simplify right side
    461,226.78x = 165,502,700,112.36
  5. Step 5: Solve for x
    x = 165,502,700,112.36/461,226.78
  6. Step 6: Final answer
    x = 358,831.51

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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.