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Finding the Fourth Proportional to 640,833.53, 961,304.96 and 167,518.13

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Solution

The fourth proportional to 640,833.53, 961,304.96 and 167,518.13 is: 251,291.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,833.53 : 961,304.96 = 167,518.13 : x
  2. Step 2: Convert to fraction form
    640,833.53/961,304.96 = 167,518.13/x
  3. Step 3: Cross multiply
    640,833.53x = 961,304.96 × 167,518.13
  4. Step 4: Simplify right side
    640,833.53x = 161,036,004,871.20
  5. Step 5: Solve for x
    x = 161,036,004,871.20/640,833.53
  6. Step 6: Final answer
    x = 251,291.48

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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.