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Finding the Fourth Proportional to 308,831.10, 463,246.65 and 214,352.70

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Solution

The fourth proportional to 308,831.10, 463,246.65 and 214,352.70 is: 321,529.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,831.10 : 463,246.65 = 214,352.70 : x
  2. Step 2: Convert to fraction form
    308,831.10/463,246.65 = 214,352.70/x
  3. Step 3: Cross multiply
    308,831.10x = 463,246.65 × 214,352.70
  4. Step 4: Simplify right side
    308,831.10x = 99,298,170,193.46
  5. Step 5: Solve for x
    x = 99,298,170,193.46/308,831.10
  6. Step 6: Final answer
    x = 321,529.05

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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.