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Finding the Fourth Proportional to 633,263.28, 873,863.28 and 346,786.80

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Solution

The fourth proportional to 633,263.28, 873,863.28 and 346,786.80 is: 478,543.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,263.28 : 873,863.28 = 346,786.80 : x
  2. Step 2: Convert to fraction form
    633,263.28/873,863.28 = 346,786.80/x
  3. Step 3: Cross multiply
    633,263.28x = 873,863.28 × 346,786.80
  4. Step 4: Simplify right side
    633,263.28x = 303,044,250,508.70
  5. Step 5: Solve for x
    x = 303,044,250,508.70/633,263.28
  6. Step 6: Final answer
    x = 478,543.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.