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Finding the Fourth Proportional to 531,116.72, 796,910.59 and 278,337.12

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Solution

The fourth proportional to 531,116.72, 796,910.59 and 278,337.12 is: 417,629.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,116.72 : 796,910.59 = 278,337.12 : x
  2. Step 2: Convert to fraction form
    531,116.72/796,910.59 = 278,337.12/x
  3. Step 3: Cross multiply
    531,116.72x = 796,910.59 × 278,337.12
  4. Step 4: Simplify right side
    531,116.72x = 221,809,798,518.10
  5. Step 5: Solve for x
    x = 221,809,798,518.10/531,116.72
  6. Step 6: Final answer
    x = 417,629.10

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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.