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Finding the Fourth Proportional to 637,976.70, 958,390.65 and 533,000.70

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Solution

The fourth proportional to 637,976.70, 958,390.65 and 533,000.70 is: 800,692.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,976.70 : 958,390.65 = 533,000.70 : x
  2. Step 2: Convert to fraction form
    637,976.70/958,390.65 = 533,000.70/x
  3. Step 3: Cross multiply
    637,976.70x = 958,390.65 × 533,000.70
  4. Step 4: Simplify right side
    637,976.70x = 510,822,887,323.46
  5. Step 5: Solve for x
    x = 510,822,887,323.46/637,976.70
  6. Step 6: Final answer
    x = 800,692.07

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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.