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Finding the Fourth Proportional to 375,703.20, 563,554.80 and 329,047.20

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Solution

The fourth proportional to 375,703.20, 563,554.80 and 329,047.20 is: 493,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,703.20 : 563,554.80 = 329,047.20 : x
  2. Step 2: Convert to fraction form
    375,703.20/563,554.80 = 329,047.20/x
  3. Step 3: Cross multiply
    375,703.20x = 563,554.80 × 329,047.20
  4. Step 4: Simplify right side
    375,703.20x = 185,436,128,986.56
  5. Step 5: Solve for x
    x = 185,436,128,986.56/375,703.20
  6. Step 6: Final answer
    x = 493,570.80

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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.