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Finding the Fourth Proportional to 531,442.80, 796,890.60 and 157,417.20

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Solution

The fourth proportional to 531,442.80, 796,890.60 and 157,417.20 is: 236,044.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,442.80 : 796,890.60 = 157,417.20 : x
  2. Step 2: Convert to fraction form
    531,442.80/796,890.60 = 157,417.20/x
  3. Step 3: Cross multiply
    531,442.80x = 796,890.60 × 157,417.20
  4. Step 4: Simplify right side
    531,442.80x = 125,444,286,958.32
  5. Step 5: Solve for x
    x = 125,444,286,958.32/531,442.80
  6. Step 6: Final answer
    x = 236,044.76

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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.