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Finding the Fourth Proportional to 462,818.67, 638,748.90 and 258,880.92

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Solution

The fourth proportional to 462,818.67, 638,748.90 and 258,880.92 is: 357,288.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,818.67 : 638,748.90 = 258,880.92 : x
  2. Step 2: Convert to fraction form
    462,818.67/638,748.90 = 258,880.92/x
  3. Step 3: Cross multiply
    462,818.67x = 638,748.90 × 258,880.92
  4. Step 4: Simplify right side
    462,818.67x = 165,359,902,880.99
  5. Step 5: Solve for x
    x = 165,359,902,880.99/462,818.67
  6. Step 6: Final answer
    x = 357,288.75

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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.