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Finding the Fourth Proportional to 317,968.92, 476,598.12 and 137,846.40

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Solution

The fourth proportional to 317,968.92, 476,598.12 and 137,846.40 is: 206,615.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,968.92 : 476,598.12 = 137,846.40 : x
  2. Step 2: Convert to fraction form
    317,968.92/476,598.12 = 137,846.40/x
  3. Step 3: Cross multiply
    317,968.92x = 476,598.12 × 137,846.40
  4. Step 4: Simplify right side
    317,968.92x = 65,697,335,088.77
  5. Step 5: Solve for x
    x = 65,697,335,088.77/317,968.92
  6. Step 6: Final answer
    x = 206,615.59

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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.