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Finding the Fourth Proportional to 424,563.12, 585,830.34 and 243,240.12

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Solution

The fourth proportional to 424,563.12, 585,830.34 and 243,240.12 is: 335,633.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,563.12 : 585,830.34 = 243,240.12 : x
  2. Step 2: Convert to fraction form
    424,563.12/585,830.34 = 243,240.12/x
  3. Step 3: Cross multiply
    424,563.12x = 585,830.34 × 243,240.12
  4. Step 4: Simplify right side
    424,563.12x = 142,497,442,201.24
  5. Step 5: Solve for x
    x = 142,497,442,201.24/424,563.12
  6. Step 6: Final answer
    x = 335,633.11

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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.