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Finding the Fourth Proportional to 453,482.65, 679,988.67 and 133,593

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Solution

The fourth proportional to 453,482.65, 679,988.67 and 133,593 is: 200,320.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,482.65 : 679,988.67 = 133,593 : x
  2. Step 2: Convert to fraction form
    453,482.65/679,988.67 = 133,593/x
  3. Step 3: Cross multiply
    453,482.65x = 679,988.67 × 133,593
  4. Step 4: Simplify right side
    453,482.65x = 90,841,726,391.31
  5. Step 5: Solve for x
    x = 90,841,726,391.31/453,482.65
  6. Step 6: Final answer
    x = 200,320.18

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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.