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Finding the Fourth Proportional to 460,445.82, 690,767.55 and 260,861.82

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Solution

The fourth proportional to 460,445.82, 690,767.55 and 260,861.82 is: 391,348.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,445.82 : 690,767.55 = 260,861.82 : x
  2. Step 2: Convert to fraction form
    460,445.82/690,767.55 = 260,861.82/x
  3. Step 3: Cross multiply
    460,445.82x = 690,767.55 × 260,861.82
  4. Step 4: Simplify right side
    460,445.82x = 180,194,880,289.94
  5. Step 5: Solve for x
    x = 180,194,880,289.94/460,445.82
  6. Step 6: Final answer
    x = 391,348.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.