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Finding the Fourth Proportional to 586,987.80, 880,827.30 and 213,048.60

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Solution

The fourth proportional to 586,987.80, 880,827.30 and 213,048.60 is: 319,698.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,987.80 : 880,827.30 = 213,048.60 : x
  2. Step 2: Convert to fraction form
    586,987.80/880,827.30 = 213,048.60/x
  3. Step 3: Cross multiply
    586,987.80x = 880,827.30 × 213,048.60
  4. Step 4: Simplify right side
    586,987.80x = 187,659,023,106.78
  5. Step 5: Solve for x
    x = 187,659,023,106.78/586,987.80
  6. Step 6: Final answer
    x = 319,698.34

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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.