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Finding the Fourth Proportional to 559,436.80, 837,186.90 and 512,197.60

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Solution

The fourth proportional to 559,436.80, 837,186.90 and 512,197.60 is: 766,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,436.80 : 837,186.90 = 512,197.60 : x
  2. Step 2: Convert to fraction form
    559,436.80/837,186.90 = 512,197.60/x
  3. Step 3: Cross multiply
    559,436.80x = 837,186.90 × 512,197.60
  4. Step 4: Simplify right side
    559,436.80x = 428,805,120,931.44
  5. Step 5: Solve for x
    x = 428,805,120,931.44/559,436.80
  6. Step 6: Final answer
    x = 766,494.30

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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.