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Finding the Fourth Proportional to 372,455.80, 558,683.70 and 223,156.60

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Solution

The fourth proportional to 372,455.80, 558,683.70 and 223,156.60 is: 334,734.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,455.80 : 558,683.70 = 223,156.60 : x
  2. Step 2: Convert to fraction form
    372,455.80/558,683.70 = 223,156.60/x
  3. Step 3: Cross multiply
    372,455.80x = 558,683.70 × 223,156.60
  4. Step 4: Simplify right side
    372,455.80x = 124,673,954,967.42
  5. Step 5: Solve for x
    x = 124,673,954,967.42/372,455.80
  6. Step 6: Final answer
    x = 334,734.90

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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.