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Finding the Fourth Proportional to 425,198.07, 586,753.89 and 243,898.59

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Solution

The fourth proportional to 425,198.07, 586,753.89 and 243,898.59 is: 336,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,198.07 : 586,753.89 = 243,898.59 : x
  2. Step 2: Convert to fraction form
    425,198.07/586,753.89 = 243,898.59/x
  3. Step 3: Cross multiply
    425,198.07x = 586,753.89 × 243,898.59
  4. Step 4: Simplify right side
    425,198.07x = 143,108,446,448.02
  5. Step 5: Solve for x
    x = 143,108,446,448.02/425,198.07
  6. Step 6: Final answer
    x = 336,568.90

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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.