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Finding the Fourth Proportional to 622,817.30, 859,487.87 and 336,337.38

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Solution

The fourth proportional to 622,817.30, 859,487.87 and 336,337.38 is: 464,145.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,817.30 : 859,487.87 = 336,337.38 : x
  2. Step 2: Convert to fraction form
    622,817.30/859,487.87 = 336,337.38/x
  3. Step 3: Cross multiply
    622,817.30x = 859,487.87 × 336,337.38
  4. Step 4: Simplify right side
    622,817.30x = 289,077,899,178.42
  5. Step 5: Solve for x
    x = 289,077,899,178.42/622,817.30
  6. Step 6: Final answer
    x = 464,145.58

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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.