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Finding the Fourth Proportional to 559,437.80, 837,188.40 and 512,198.60

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Solution

The fourth proportional to 559,437.80, 837,188.40 and 512,198.60 is: 766,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,437.80 : 837,188.40 = 512,198.60 : x
  2. Step 2: Convert to fraction form
    559,437.80/837,188.40 = 512,198.60/x
  3. Step 3: Cross multiply
    559,437.80x = 837,188.40 × 512,198.60
  4. Step 4: Simplify right side
    559,437.80x = 428,806,726,416.24
  5. Step 5: Solve for x
    x = 428,806,726,416.24/559,437.80
  6. Step 6: Final answer
    x = 766,495.80

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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.