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Finding the Fourth Proportional to 591,271.20, 885,740.40 and 353,908.80

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Solution

The fourth proportional to 591,271.20, 885,740.40 and 353,908.80 is: 530,165.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,271.20 : 885,740.40 = 353,908.80 : x
  2. Step 2: Convert to fraction form
    591,271.20/885,740.40 = 353,908.80/x
  3. Step 3: Cross multiply
    591,271.20x = 885,740.40 × 353,908.80
  4. Step 4: Simplify right side
    591,271.20x = 313,471,322,075.52
  5. Step 5: Solve for x
    x = 313,471,322,075.52/591,271.20
  6. Step 6: Final answer
    x = 530,165.04

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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.