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Finding the Fourth Proportional to 540,245.40, 812,336.40 and 453,640.20

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Solution

The fourth proportional to 540,245.40, 812,336.40 and 453,640.20 is: 682,113.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,245.40 : 812,336.40 = 453,640.20 : x
  2. Step 2: Convert to fraction form
    540,245.40/812,336.40 = 453,640.20/x
  3. Step 3: Cross multiply
    540,245.40x = 812,336.40 × 453,640.20
  4. Step 4: Simplify right side
    540,245.40x = 368,508,446,963.28
  5. Step 5: Solve for x
    x = 368,508,446,963.28/540,245.40
  6. Step 6: Final answer
    x = 682,113.07

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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.