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Finding the Fourth Proportional to 425,063.34, 586,605.54 and 243,826.38

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Solution

The fourth proportional to 425,063.34, 586,605.54 and 243,826.38 is: 336,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,063.34 : 586,605.54 = 243,826.38 : x
  2. Step 2: Convert to fraction form
    425,063.34/586,605.54 = 243,826.38/x
  3. Step 3: Cross multiply
    425,063.34x = 586,605.54 × 243,826.38
  4. Step 4: Simplify right side
    425,063.34x = 143,029,905,306.15
  5. Step 5: Solve for x
    x = 143,029,905,306.15/425,063.34
  6. Step 6: Final answer
    x = 336,490.80

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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.