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Finding the Fourth Proportional to 316,594.32, 474,916.14 and 91,958.40

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Solution

The fourth proportional to 316,594.32, 474,916.14 and 91,958.40 is: 137,944.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,594.32 : 474,916.14 = 91,958.40 : x
  2. Step 2: Convert to fraction form
    316,594.32/474,916.14 = 91,958.40/x
  3. Step 3: Cross multiply
    316,594.32x = 474,916.14 × 91,958.40
  4. Step 4: Simplify right side
    316,594.32x = 43,672,528,368.58
  5. Step 5: Solve for x
    x = 43,672,528,368.58/316,594.32
  6. Step 6: Final answer
    x = 137,944.76

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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.