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Finding the Fourth Proportional to 483,532.80, 724,953.60 and 217,075.20

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Solution

The fourth proportional to 483,532.80, 724,953.60 and 217,075.20 is: 325,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,532.80 : 724,953.60 = 217,075.20 : x
  2. Step 2: Convert to fraction form
    483,532.80/724,953.60 = 217,075.20/x
  3. Step 3: Cross multiply
    483,532.80x = 724,953.60 × 217,075.20
  4. Step 4: Simplify right side
    483,532.80x = 157,369,447,710.72
  5. Step 5: Solve for x
    x = 157,369,447,710.72/483,532.80
  6. Step 6: Final answer
    x = 325,457.65

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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.