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Finding the Fourth Proportional to 346,677.64, 520,068.30 and 146,998.60

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Solution

The fourth proportional to 346,677.64, 520,068.30 and 146,998.60 is: 220,519.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,677.64 : 520,068.30 = 146,998.60 : x
  2. Step 2: Convert to fraction form
    346,677.64/520,068.30 = 146,998.60/x
  3. Step 3: Cross multiply
    346,677.64x = 520,068.30 × 146,998.60
  4. Step 4: Simplify right side
    346,677.64x = 76,449,312,004.38
  5. Step 5: Solve for x
    x = 76,449,312,004.38/346,677.64
  6. Step 6: Final answer
    x = 220,519.88

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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.