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Finding the Fourth Proportional to 346,505.70, 520,086.60 and 296,642.10

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Solution

The fourth proportional to 346,505.70, 520,086.60 and 296,642.10 is: 445,243.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,505.70 : 520,086.60 = 296,642.10 : x
  2. Step 2: Convert to fraction form
    346,505.70/520,086.60 = 296,642.10/x
  3. Step 3: Cross multiply
    346,505.70x = 520,086.60 × 296,642.10
  4. Step 4: Simplify right side
    346,505.70x = 154,279,581,205.86
  5. Step 5: Solve for x
    x = 154,279,581,205.86/346,505.70
  6. Step 6: Final answer
    x = 445,243.99

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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.