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Finding the Fourth Proportional to 385,192.80, 577,745.46 and 148,515.66

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Solution

The fourth proportional to 385,192.80, 577,745.46 and 148,515.66 is: 222,756.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,192.80 : 577,745.46 = 148,515.66 : x
  2. Step 2: Convert to fraction form
    385,192.80/577,745.46 = 148,515.66/x
  3. Step 3: Cross multiply
    385,192.80x = 577,745.46 × 148,515.66
  4. Step 4: Simplify right side
    385,192.80x = 85,804,248,303.90
  5. Step 5: Solve for x
    x = 85,804,248,303.90/385,192.80
  6. Step 6: Final answer
    x = 222,756.63

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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.