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Finding the Fourth Proportional to 493,856.10, 740,784.15 and 341,640.90

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Solution

The fourth proportional to 493,856.10, 740,784.15 and 341,640.90 is: 512,461.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,856.10 : 740,784.15 = 341,640.90 : x
  2. Step 2: Convert to fraction form
    493,856.10/740,784.15 = 341,640.90/x
  3. Step 3: Cross multiply
    493,856.10x = 740,784.15 × 341,640.90
  4. Step 4: Simplify right side
    493,856.10x = 253,082,163,711.74
  5. Step 5: Solve for x
    x = 253,082,163,711.74/493,856.10
  6. Step 6: Final answer
    x = 512,461.35

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Similar ratio
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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.