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Finding the Fourth Proportional to 540,245.90, 812,337.15 and 453,640.70

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Solution

The fourth proportional to 540,245.90, 812,337.15 and 453,640.70 is: 682,113.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,245.90 : 812,337.15 = 453,640.70 : x
  2. Step 2: Convert to fraction form
    540,245.90/812,337.15 = 453,640.70/x
  3. Step 3: Cross multiply
    540,245.90x = 812,337.15 × 453,640.70
  4. Step 4: Simplify right side
    540,245.90x = 368,509,193,362.01
  5. Step 5: Solve for x
    x = 368,509,193,362.01/540,245.90
  6. Step 6: Final answer
    x = 682,113.82

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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.