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Finding the Fourth Proportional to 490,760.16, 736,140.69 and 153,827.16

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Solution

The fourth proportional to 490,760.16, 736,140.69 and 153,827.16 is: 230,740.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,760.16 : 736,140.69 = 153,827.16 : x
  2. Step 2: Convert to fraction form
    490,760.16/736,140.69 = 153,827.16/x
  3. Step 3: Cross multiply
    490,760.16x = 736,140.69 × 153,827.16
  4. Step 4: Simplify right side
    490,760.16x = 113,238,431,703.14
  5. Step 5: Solve for x
    x = 113,238,431,703.14/490,760.16
  6. Step 6: Final answer
    x = 230,740.88

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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.