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Finding the Fourth Proportional to 590,290.88, 885,128.88 and 211,065.44

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Solution

The fourth proportional to 590,290.88, 885,128.88 and 211,065.44 is: 316,488.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,290.88 : 885,128.88 = 211,065.44 : x
  2. Step 2: Convert to fraction form
    590,290.88/885,128.88 = 211,065.44/x
  3. Step 3: Cross multiply
    590,290.88x = 885,128.88 × 211,065.44
  4. Step 4: Simplify right side
    590,290.88x = 186,820,116,513.91
  5. Step 5: Solve for x
    x = 186,820,116,513.91/590,290.88
  6. Step 6: Final answer
    x = 316,488.23

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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.