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Finding the Fourth Proportional to 303,359.90, 455,331.45 and 153,769.10

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Solution

The fourth proportional to 303,359.90, 455,331.45 and 153,769.10 is: 230,801.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,359.90 : 455,331.45 = 153,769.10 : x
  2. Step 2: Convert to fraction form
    303,359.90/455,331.45 = 153,769.10/x
  3. Step 3: Cross multiply
    303,359.90x = 455,331.45 × 153,769.10
  4. Step 4: Simplify right side
    303,359.90x = 70,015,907,268.20
  5. Step 5: Solve for x
    x = 70,015,907,268.20/303,359.90
  6. Step 6: Final answer
    x = 230,801.46

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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.