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Finding the Fourth Proportional to 500,854.65, 751,328.40 and 181,086.50

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Solution

The fourth proportional to 500,854.65, 751,328.40 and 181,086.50 is: 271,646.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,854.65 : 751,328.40 = 181,086.50 : x
  2. Step 2: Convert to fraction form
    500,854.65/751,328.40 = 181,086.50/x
  3. Step 3: Cross multiply
    500,854.65x = 751,328.40 × 181,086.50
  4. Step 4: Simplify right side
    500,854.65x = 136,055,426,549.96
  5. Step 5: Solve for x
    x = 136,055,426,549.96/500,854.65
  6. Step 6: Final answer
    x = 271,646.53

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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.