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Finding the Fourth Proportional to 346,695.80, 520,043.70 and 323,367.80

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Solution

The fourth proportional to 346,695.80, 520,043.70 and 323,367.80 is: 485,051.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,695.80 : 520,043.70 = 323,367.80 : x
  2. Step 2: Convert to fraction form
    346,695.80/520,043.70 = 323,367.80/x
  3. Step 3: Cross multiply
    346,695.80x = 520,043.70 × 323,367.80
  4. Step 4: Simplify right side
    346,695.80x = 168,165,387,172.86
  5. Step 5: Solve for x
    x = 168,165,387,172.86/346,695.80
  6. Step 6: Final answer
    x = 485,051.70

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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.