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Finding the Fourth Proportional to 313,096.40, 469,903.80 and 144,875.60

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Solution

The fourth proportional to 313,096.40, 469,903.80 and 144,875.60 is: 217,433.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,096.40 : 469,903.80 = 144,875.60 : x
  2. Step 2: Convert to fraction form
    313,096.40/469,903.80 = 144,875.60/x
  3. Step 3: Cross multiply
    313,096.40x = 469,903.80 × 144,875.60
  4. Step 4: Simplify right side
    313,096.40x = 68,077,594,967.28
  5. Step 5: Solve for x
    x = 68,077,594,967.28/313,096.40
  6. Step 6: Final answer
    x = 217,433.34

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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.