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Finding the Fourth Proportional to 316,431.32, 474,874.16 and 124,334.96

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Solution

The fourth proportional to 316,431.32, 474,874.16 and 124,334.96 is: 186,591.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,431.32 : 474,874.16 = 124,334.96 : x
  2. Step 2: Convert to fraction form
    316,431.32/474,874.16 = 124,334.96/x
  3. Step 3: Cross multiply
    316,431.32x = 474,874.16 × 124,334.96
  4. Step 4: Simplify right side
    316,431.32x = 59,043,459,688.63
  5. Step 5: Solve for x
    x = 59,043,459,688.63/316,431.32
  6. Step 6: Final answer
    x = 186,591.71

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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.