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Finding the Fourth Proportional to 453,488.57, 679,781.48 and 216,554.25

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Solution

The fourth proportional to 453,488.57, 679,781.48 and 216,554.25 is: 324,615.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,488.57 : 679,781.48 = 216,554.25 : x
  2. Step 2: Convert to fraction form
    453,488.57/679,781.48 = 216,554.25/x
  3. Step 3: Cross multiply
    453,488.57x = 679,781.48 × 216,554.25
  4. Step 4: Simplify right side
    453,488.57x = 147,209,567,482.52
  5. Step 5: Solve for x
    x = 147,209,567,482.52/453,488.57
  6. Step 6: Final answer
    x = 324,615.83

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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.