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Finding the Fourth Proportional to 303,460.10, 455,080.80 and 153,650.60

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Solution

The fourth proportional to 303,460.10, 455,080.80 and 153,650.60 is: 230,420.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,460.10 : 455,080.80 = 153,650.60 : x
  2. Step 2: Convert to fraction form
    303,460.10/455,080.80 = 153,650.60/x
  3. Step 3: Cross multiply
    303,460.10x = 455,080.80 × 153,650.60
  4. Step 4: Simplify right side
    303,460.10x = 69,923,437,968.48
  5. Step 5: Solve for x
    x = 69,923,437,968.48/303,460.10
  6. Step 6: Final answer
    x = 230,420.53

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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.