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Finding the Fourth Proportional to 630,095.28, 869,553.30 and 358,174.56

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Solution

The fourth proportional to 630,095.28, 869,553.30 and 358,174.56 is: 494,293.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,095.28 : 869,553.30 = 358,174.56 : x
  2. Step 2: Convert to fraction form
    630,095.28/869,553.30 = 358,174.56/x
  3. Step 3: Cross multiply
    630,095.28x = 869,553.30 × 358,174.56
  4. Step 4: Simplify right side
    630,095.28x = 311,451,870,624.05
  5. Step 5: Solve for x
    x = 311,451,870,624.05/630,095.28
  6. Step 6: Final answer
    x = 494,293.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.