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Finding the Fourth Proportional to 585,567.80, 878,439.18 and 186,221.60

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Solution

The fourth proportional to 585,567.80, 878,439.18 and 186,221.60 is: 279,360.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,567.80 : 878,439.18 = 186,221.60 : x
  2. Step 2: Convert to fraction form
    585,567.80/878,439.18 = 186,221.60/x
  3. Step 3: Cross multiply
    585,567.80x = 878,439.18 × 186,221.60
  4. Step 4: Simplify right side
    585,567.80x = 163,584,345,210.09
  5. Step 5: Solve for x
    x = 163,584,345,210.09/585,567.80
  6. Step 6: Final answer
    x = 279,360.22

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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.