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Finding the Fourth Proportional to 636,831.17, 955,215.60 and 237,440.81

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Solution

The fourth proportional to 636,831.17, 955,215.60 and 237,440.81 is: 356,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,831.17 : 955,215.60 = 237,440.81 : x
  2. Step 2: Convert to fraction form
    636,831.17/955,215.60 = 237,440.81/x
  3. Step 3: Cross multiply
    636,831.17x = 955,215.60 × 237,440.81
  4. Step 4: Simplify right side
    636,831.17x = 226,807,165,788.64
  5. Step 5: Solve for x
    x = 226,807,165,788.64/636,831.17
  6. Step 6: Final answer
    x = 356,149.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.