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Finding the Fourth Proportional to 653,824.70, 980,737.05 and 543,232.70

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Solution

The fourth proportional to 653,824.70, 980,737.05 and 543,232.70 is: 814,849.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,824.70 : 980,737.05 = 543,232.70 : x
  2. Step 2: Convert to fraction form
    653,824.70/980,737.05 = 543,232.70/x
  3. Step 3: Cross multiply
    653,824.70x = 980,737.05 × 543,232.70
  4. Step 4: Simplify right side
    653,824.70x = 532,768,435,661.54
  5. Step 5: Solve for x
    x = 532,768,435,661.54/653,824.70
  6. Step 6: Final answer
    x = 814,849.05

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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.